Dividends paid by our wholly foreign-owned subsidiary in China to our intermediary holding company in Hong Kong will be subject to a withholding tax rate of 10%, unless the relevant Hong Kong entity satisfies all the requirements under the Arrangement between Mainland China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and Tax Evasion on Income with respect to Taxes on Income and Capital and receives approval from the relevant tax authority.
Dividends paid by our wholly foreign-owned subsidiary in China to our intermediary holding company in Hong Kong will be subject to a withholding tax rate of 10%, unless the relevant Hong Kong entity satisfies all the requirements under the Arrangement between Mainland China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and Tax Evasion on Income with respect to Taxes on Income and Capital and receives approval from the tax authority.
Critical Accounting Estimate Critical Accounting Policies, Judgments and Estimates An accounting policy is considered critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time such estimate is made, and if different accounting estimates that reasonably could have been used, or changes in the accounting estimates that are reasonably likely to occur periodically, could materially impact the consolidated financial statements.
Critical Accounting Estimates Critical Accounting Policies, Judgments and Estimates An accounting policy is considered critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time such estimate is made, and if different accounting estimates that reasonably could have been used, or changes in the accounting estimates that are reasonably likely to occur periodically, could materially impact the consolidated financial statements.
Our revenue is primarily derived from (i) IoT @ Home portfolio including sweeper robots, air conditioning systems and other smart devices, (ii) home water solutions, which are composed of smart water purification systems, (iii) consumable products complementary to our IoT-enabled smart home products, such as water purifier filters, and (iv) small appliances and others refer to the value-added businesses.
Our revenue is primarily derived from (i) IoT@Home portfolio products including sweeper robots, air conditioning systems and other smart devices, (ii) home water solutions, which are composed of smart water purification systems, (iii) consumable products complementary to our IoT products, such as water purifier filters, and (iv) small appliances and others refer to the value-added businesses.
If our Hong Kong subsidiary satisfies all the requirements under the tax arrangement and receives approval from the relevant tax authority, then the dividends paid to the Hong Kong subsidiary would be subject to withholding tax at the standard rate of 5%. See “Item 3. Key Information—D.
If our Hong Kong subsidiary satisfies all the requirements under the tax arrangement and receives approval from the tax authority, then the dividends paid to the Hong Kong subsidiary would be subject to withholding tax at the standard rate of 5%. See “Item 3. Key Information—D.
The difference between net cash used in operating activities and our net loss of RMB282.6 million (US$41.0 million) was primarily due to RMB210.7 million used for working capital, partially offset by the adjustment of RMB88.5 million in depreciation and amortization, RMB 53.0 million in allowance for doubtful accounts, and RMB32.8 million in inventory write-down.
The difference between net cash used in operating activities and our net loss of RMB282.6 million was primarily due to RMB210.7 million used for working capital, partially offset by the adjustment of RMB88.5 million in depreciation and amortization, RMB 53.0 million in allowance for doubtful accounts, and RMB32.8 million in inventory write-down.
IoT @ Home portfolio . Revenues from IoT @ Home portfolio decreased by 52.4% from RMB3,401.0 million in 2021 to RMB1,619.9 million (US$234.9 million) in 2022, primarily due to the complete cutoff of sales of Xiaomi-branded sweeper robots, as well as SKU adjustments for smart kitchen products . Home water solutions .
Revenues from IoT@Home portfolio products decreased by 52.4% from RMB3,401.0 million in 2021 to RMB1,619.9 million in 2022, primarily due to the complete cutoff of sales of Xiaomi-branded sweeper robots, as well as SKU adjustments for smart kitchen products. Home water solutions .
Our gross margin increased from 22.6% to 22.8% for the same periods. The increase in gross margin was primarily driven by our continued efforts to shift the product mix toward higher profit margin products, partially offest by a decrease in the selling prices of certain clean-up products in 2022.
Our gross margin increased from 22.6% to 22.8% for the same periods. The increase in gross margin was primarily driven by our continued efforts to shift the product mix toward higher profit margin products, partially offset by a decrease in the selling prices of certain clean-up products in 2022.
Under PRC law, each of our subsidiary, our VIEs and their subsidiaries in China is required to set aside at least 10% of its after-tax profits each year, if any, to fund certain statutory reserve funds until such reserve funds reach 50% of its registered capital.
Under PRC laws, each of our subsidiary, our VIEs and their subsidiaries in China is required to set aside at least 10% of its after-tax profits each year, if any, to fund certain statutory reserve funds until such reserve funds reach 50% of its registered capital.
Revenue recognition In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU 2014-09”) and subsequently, the FASB issued several amendments which amend certain aspects of the guidance in ASC 2014-09 (ASU No. 2014-09 and the related amendments are collectively referred to as “ASC 606”).
Revenue recognition In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” and subsequently, the FASB issued several amendments which amend certain aspects of the guidance in ASC 2014-09 (ASU No. 2014-09 and the related amendments are collectively referred to as “ASC 606”).
For the years ended December 31, 2020, 2021 and 2022, sales of our IoT products accounted for 78.2%, 78.1% and 71.2% of our net revenues, respectively. Different product categories may have different attributable gross margins due to various factors, including industry and competitive dynamics, our pricing strategy, target customer demographics as well as raw material and production costs, among others.
For the years ended December 31, 2021, 2022 and 2023, sales of our IoT products accounted for 78.1%, 71.2% and 73.2% of our net revenues, respectively. Different product categories may have different attributable gross margins due to various factors, including industry and competitive dynamics, our pricing strategy, target customer demographics as well as raw material and production costs, among others.
Historically, revenues from this category have predominantly comprised of related household product sales. Brands Our IoT @ Home platform comprises of two key pillars, our Viomi business, predominantly comprising our Viomi-branded products, and our Xiaomi business, comprising our strategic partnership with Xiaomi.
Historically, revenues from this category have predominantly comprised of product sales. Brands Our IoT@Home platform comprises of two key pillars: our Viomi business, predominantly comprising our Viomi-branded products, and our Xiaomi business, comprising our strategic partnership with Xiaomi.
We do not have any variable interest in any unconsolidated entity that provides financing, liquidity, market risk or credit support to us or engages in leasing, hedging or product development services with us. 113 Table of Contents Holding Company Structure Viomi Technology Co., Ltd is a holding company with no material operations of its own.
We do not have any variable interest in any unconsolidated entity that provides financing, liquidity, market risk or credit support to us or engages in leasing, hedging or product development services with us. Holding Company Structure Viomi Technology Co., Ltd is a holding company with no material operations of its own.
Some of our accounting policies require a higher degree of judgment than others in their application and require us to make significant accounting estimates. 114 Table of Contents The following descriptions of critical accounting policies, judgments and related critical estimates should be read in conjunction with our consolidated financial statements and accompanying notes and other disclosures included in this annual report.
Some of our accounting policies require a higher degree of judgment than others in their application and require us to make significant accounting estimates. The following descriptions of critical accounting policies, judgments and related critical estimates should be read in conjunction with our consolidated financial statements and accompanying notes and other disclosures included in this annual report.
Investing activities Net cash provided by investing activities was RMB314.5 million (US$45.6 million) in 2022, mainly as a result of RMB983.9 million received from the maturity of short-term investments, partially offset by RMB348.0 million used for the purchase of short-term investments, RMB195.6 million used for the purchase of equipment and RMB171.5 million used for the placement of short-term deposits. 111 Table of Contents We used RMB265.3 million in investing activities in 2021, mainly as a result of RMB1.8 billion used for the purchase of short-term investments, RMB164.8 million used for placement of short-term deposits and RMB99.4 million used for the purchase of equipment, partially offset by RMB1.7 billion from the maturity of short-term investments.
Net cash provided by investing activities was RMB314.5 million in 2022, mainly as a result of RMB983.9 million received from the maturity of short-term investments, partially offset by RMB348.0 million used for the purchase of short-term investments, RMB195.6 million used for the purchase of equipment and RMB171.5 million used for the placement of short-term deposits. 102 Table of Contents We used RMB265.3 million in investing activities in 2021, mainly as a result of RMB1.8 billion used for the purchase of short-term investments, RMB164.8 million used for placement of short-term deposits and RMB99.4 million used for the purchase of equipment, partially offset by RMB1.7 billion from the maturity of short-term investments.
Selling and marketing expenses decreased by 18.1% from RMB751.0 million in 2021 to RMB614.9 million (US$89.2 million) in 2022. This decrease was primarily due to a decrease in logistics and staff related expenses. Income tax expenses We had an income tax expenses of RMB18.2 million (US$2.6 million) in 2022, compared to RMB5.7 million in 2021.
Selling and marketing expenses decreased by 18.1% from RMB751.0 million in 2021 to RMB614.9 million in 2022. This decrease was primarily due to a decrease in logistics and staff related expenses. Income tax expenses We had an income tax expenses of RMB18.2 million in 2022, compared to RMB5.7 million in 2021.
In addition, the proportionate contributions of our various business lines to our net revenues may change over time as we continue to grow our business and increase the number of our household users.
In addition, the proportionate contributions of our various business lines to our net revenues may change over time as we continue to develop our business and increase the number of our household users.
Our research and development expenses primarily consist of salaries and benefits as well as share-based compensation for research and development personnel, materials, general expenses and depreciation expenses associated with research and development activities.
Our research and development expenses primarily consist of salaries and benefits as well as share-based compensation for research and development personnel, materials, general expenses and depreciation expenses associated with research and development activities. Selling and marketing .
Cost of revenues Our cost of revenues decreased by 39.2% from RMB4,105.8 million in 2021 to RMB2,495.6 million (US$361.8 million) in 2022, which is in line with the overall decreased revenue scale. Gross profit As a result of the foregoing, our gross profit decreased by 38.5% from RMB1,198.1 million in 2021 to RMB737.1 million (US$106.9 million) in 2022.
Cost of revenues Our cost of revenues decreased by 39.2% from RMB4,105.8 million in 2021 to RMB2,495.6 million in 2022, which is in line with the overall decreased revenue scale. Gross profit As a result of the foregoing, our gross profit decreased by 38.5% from RMB1,198.1 million in 2021 to RMB737.1 million in 2022.
Financing activities Net cash provided by financing activities was RMB113.6 million (US$16.5 million) in 2022, mainly as a result of RMB118.7 million proceed from borrowing, partially offset by RMB8.0 million used in repurchases of ordinary shares.
Net cash provided by financing activities was RMB113.6 million in 2022, mainly as a result of RMB118.7 million proceed from borrowing, partially offset by RMB8.0 million used in repurchases of ordinary shares.
Revenues from consumables decreased by 2.3% from RMB367.0 million in 2021 to RMB358.4 million (US$52.0 million) in 2022. Small appliances and others . Revenues from small appliances and others decreased by 27.7% from RMB792.9 million in 2021 to RMB573.3 million (US$83.1 million) in 2022, primarily due to the streamline of SKUs within this category.
Revenues from consumables decreased by 2.3% from RMB367.0 million in 2021 to RMB358.4 million in 2022. Small appliances and others . Revenues from small appliances and others decreased by 27.7% from RMB792.9 million in 2021 to RMB573.3 million in 2022, primarily due to the streamline of SKUs within this category.
Home water solutions The core of our home water solutions is smart water purification systems, which were the first product category we launched and sales of these products have contributed a material portion of our historical revenues.
Home water solutions The core of our home water solutions is smart water purification systems, which were the first product category we launched in this business line, and sales of these products have contributed a material portion of our historical revenues.
Relationship with Xiaomi Xiaomi is our strategic partner, shareholder, customer and related party. Our strategic partnership with Xiaomi provides us access to Xiaomi’s ecosystem users, sales platforms and data resources and related support. Sales to Xiaomi, predominantly comprising Xiaomi-branded products, accounted for 49.6%, 43.3% and 43.4% of our net revenues in 2020, 2021 and 2022, respectively.
Relationship with Xiaomi Xiaomi is our strategic partner, shareholder, customer and related party. Our strategic partnership with Xiaomi provides us access to Xiaomi’s ecosystem users, sales platforms and data resources and related support. Sales to Xiaomi, predominantly comprising Xiaomi-branded products, accounted for 43.3%, 43.4% and 52.8% of our net revenues in 2021, 2022 and 2023, respectively.
Consumables include products complementary to our IoT products, such as water filters. Our small appliances and other business include the sales of complimentary household products, such as small appliances and homeware, as well as provision of various services, such as access to media and entertainment content, e-commerce platforms and interfaces embedded within and integrated with our products, and installation services.
Our small appliances and other business include the sales of complementary household products, such as small appliances and homeware, as well as provision of various services, such as access to media and entertainment content, e-commerce platforms and interfaces embedded within and integrated with our products, and installation services.
Net loss As a result of the foregoing, we recorded a net loss of RMB282.6 million (US$41.0 million) in 2022, compared to the net income of RMB88.9 million for 2021. Excluding the impact of share-based compensation expenses, our net loss was RMB263.1 million (US$38.1 million) in 2022, compared to the net income of RMB136.3 million for 2021.
Net loss As a result of the foregoing, we recorded a net loss of RMB282.6 million in 2022, compared to the net income of RMB88.9 million for 2021. Excluding the impact of share-based compensation expenses, our net loss was RMB263.1 million in 2022, compared to the net income of RMB136.3 million for 2021. B.
As of December 31, 2022, we had RMB89.0 million outstanding capital commitments, which are mainly related to the construction of Viomi IoT Technology Park. We intend to fund our existing and future material cash requirements with our existing cash and cash equivalents, restricted cash, short-term investments and other financing alternatives.
As of December 31, 2023, we had RMB42.2 million outstanding capital commitments, which are mainly related to the construction of Viomi IoT Technology Park. We intend to fund our existing and future material cash requirements with our existing cash and cash equivalents, restricted cash, short-term investments and other financing alternatives.
Trend Information Other than as disclosed elsewhere in this annual report, we are not aware of any trends, uncertainties, demands, commitments or events since the beginning of our fiscal year 2022 that are reasonably likely to have a material adverse effect on our net revenues, income, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future operating results or financial conditions.
Trend Information Other than as disclosed elsewhere in this annual report, we are not aware of any trends, uncertainties, demands, commitments or events for the period since January 1, 2024 that are reasonably likely to have a material adverse effect on our net revenues, income, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future operating results or financial conditions.
Furthermore, capital account transactions, which include foreign direct investment and loans, must be approved by and/or registered with the SAFE, its local branches and certain local banks. The restricted net assets of our PRC subsidiaries and VIEs amounted to RMB61.9 million, RMB112.6 million and RMB115.8 million (US$16.8 million) as of December 31, 2020, 2021 and 2022, respectively.
Furthermore, capital account transactions, which include foreign direct investment and loans, must be approved by and/or registered with the SAFE, its local branches and certain local banks. The restricted net assets of our PRC subsidiaries and VIEs amounted to RMB112.6 million, RMB115.8 million and RMB110.7 million (US$15.6 million) as of December 31, 2021, 2022 and 2023, respectively.
Operating Results Key Factors Affecting Our Results of Operations Key factors affecting our results of operations include the following: Consumption upgrade and greater adoption of IoT-enabled smart home technology in China Our business and operating results are affected by general factors influencing China’s broader consumer products and home appliances industries, including overall macroeconomic growth and increase in disposable income, overall consumption upgrade trends as well as public knowledge, acceptance and adoption of new and innovative technology such as IoT technology.
Operating Results Key Factors Affecting Our Results of Operations Key factors affecting our results of operations include the following: Consumption trend and adoption of IoT-enabled smart home technology in China Our business and operating results are affected by general factors influencing China’s broader consumer products and home appliances industries, including overall macroeconomic and consumer disposable income conditions, overall consumption trends, and in particular public knowledge, acceptance and adoption of new and innovative technology such as IoT technology.
Revenues from home water solutions decreased by 8.3% from RMB742.9 million in 2021 to RMB681.1 million (US$98.7 million) in 2022, primarily due to our product portfolio adjustment involving a decrease in small-flux water purifiers sales, partially offset by an increase in revenues from larger flux water purifiers. 106 Table of Contents Consumables .
Revenues from home water solutions decreased by 8.3% from RMB742.9 million in 2021 to RMB681.1 million in 2022, primarily due to our product portfolio adjustment involving a decrease in small-flux water purifiers sales, partially offset by an increase in revenues from larger flux water purifiers. Consumables .
Research and development expenses decreased by 3.8% from RMB311.8 million in 2021 to RMB300.0 million (US$43.5 million) in 2022, primarily due to a decrease in the share-based compensation expenses, as well as the our continued efforts in improving out research and development efficiency. Selling and marketing .
Research and development . Research and development expenses decreased by 3.8% from RMB311.8 million in 2021 to RMB300.0 million in 2022, primarily due to a decrease in the share-based compensation expenses, as well as the our continued efforts in improving out research and development efficiency. 100 Table of Contents Selling and marketing .
We recognize revenue for the sales to third-party customers in accordance with the applicable revenue recognition method for each of the distinct performance obligation identified. Sales of products is recognized upon acceptance by customers after delivery.
We recognize revenue for the sales to third-party customers in accordance with the applicable revenue recognition method for each of the distinct performance obligation identified. Sales of products is recognized upon acceptance by customers after delivery. Installation services revenues are recognized when the services are rendered.
Our smart kitchen products include refrigerators, oven steamers, dishwashers, range hoods and gas stoves. We also offer a diverse array of other smart products such as air conditioning systems, washing machines, water heaters, smart water kettles, sweeper robots, smart locks and other smart devices, among others.
We have continued to diversify and expand our smart kitchen products over recent years. Our smart kitchen products include refrigerators, oven steamers, dishwashers, range hoods and gas stoves. We also offer a diverse array of other smart products such as air conditioning systems, washing machines, water heaters, smart water kettles, sweeper robots, smart locks and other smart devices, among others.
Our accounts and notes payable turnover days were 80 days, 92 days and 140 days for the years ended December 31, 2020, 2021 and 2022, respectively.
Our accounts and notes payable turnover days were 92 days, 140 days and 143 days for the years ended December 31, 2021, 2022 and 2023, respectively.
General and administrative expenses consist primarily of salaries and welfare for general and administrative personnel and share-based compensation for management and administrative personnel. Within the total general and administrative expenses incurred in the year ended December 31, 2020, 2021 and 2022, RMB11.3 million, RMB9.1 million and RMB4.4 million (US$0.64 million) were share-based compensation expenses, respectively. Research and development .
General and administrative expenses consist primarily of salaries and welfare for general and administrative personnel and share-based compensation for management and administrative personnel. Within the total general and administrative expenses incurred in the year ended December 31, 2021, 2022 and 2023, RMB9.1 million, RMB4.4 million and RMB1.6 million (US$0.2 million) were share-based compensation expenses, respectively. Research and development.
Our selling and marketing expenses primarily consist of advertising and market promotion expenses, shipping expenses and salaries and welfare for sales and marketing personnel. We bear the advertising and marketing expenses for our Viomi-branded products. We do not bear such expenses for Xiaomi-branded products.
Our selling and marketing expenses primarily consist of advertising and market promotion expenses, shipping expenses, and salaries and welfare for sales and marketing personnel. We bear mainly the advertising and marketing expenses for our Viomi-branded products.
No Hong Kong profit tax has been levied as we did not have an assessable profit that was earned in or derived from the Hong Kong subsidiary during the periods presented. Hong Kong does not impose a withholding tax on dividends.
No Hong Kong profit tax has been levied as we did not have an assessable profit that was earned in or derived from the Hong Kong subsidiary during the periods presented.
For the year ended December 31, 2020, 2021 and 2022, research and development expenses were RMB265.7 million, RMB311.8 million and RMB300.0 million (US$43.5 million), accounting for 4.6%, 5.9% and 9.3% of our net revenues, respectively.
For the year ended December 31, 2021, 2022 and 2023, research and development expenses were RMB311.8 million, RMB300.0 million and RMB222.9 million (US$31.4 million), accounting for 5.9%, 9.3% and 8.9% of our net revenues, respectively.
The table below sets forth our gross profit in absolute amount and gross profit margins of products and services for the periods indicated. For the Year Ended December 31, 2020 2021 2022 RMB % RMB % RMB US$ % Gross profit and gross profit margin 1,082,956 18.6 1,198,068 22.6 737,093 106,868 22.8 104 Table of Contents Operating expenses Our operating expenses can be classified into three categories: general and administrative, research and development, and selling and marketing.
The table below sets forth our gross profit in absolute amount and gross profit margins of products and services for the periods indicated. For the Year Ended December 31, 2021 2022 2023 RMB % RMB % RMB US$ % Gross profit and gross profit margin 1,198,068 22.6 737,093 22.8 569,520 80,215 22.8 96 Table of Contents Operating expenses Our operating expenses can be classified into three categories: general and administrative, research and development, and selling and marketing.
Xiaomi is our strategic partner, shareholder and customer. Our strategic partnership with Xiaomi provides us access to Xiaomi’s ecosystem users, sales platforms and data resources and related support. Sales to Xiaomi, predominantly comprising Xiaomi-branded products, historically accounted for 49.6%, 43.3% and 43.4% of our net revenues in 2020, 2021 and 2022, respectively.
Our strategic partnership with Xiaomi provides us access to Xiaomi’s ecosystem users, sales platforms and data resources and related support. Sales to Xiaomi, predominantly comprising Xiaomi-branded products, historically accounted for 43.3%, 43.4% and 52.8% of our net revenues in 2021, 2022 and 2023, respectively.
Our cost of revenues was RMB4,742.7 million, RMB4,105.8 million and RMB2,495.6 million (US$361.8 million) for the years ended December 31, 2020, 2021 and 2022, respectively. Gross profit and gross profit margin Our gross profit margin is affected by changes in our product and business mix as well as our cost of revenues.
Our cost of revenues was RMB4,105.8 million, RMB2,495.6 million and RMB1,923.9 million (US$271.0 million) for the years ended December 31, 2021, 2022 and 2023, respectively. Gross profit and gross profit margin Our gross profit margin is affected by changes in our product and business mix as well as our cost of revenues.
As stipulated in the contracts, slow-moving goods are those unsold products after they are controlled by the e-commerce platforms for more than 30 days or 45 days or 60 days, depending on the different categories of products.
Sales returns and sales incentives - Sales to leading e-commerce platforms Our sales to leading e-commerce platforms started in 2018. As stipulated in the contracts, slow-moving goods are those unsold products after they are controlled by the e-commerce platforms for more than 30 days or 45 days or 60 days, depending on the different categories of products.
China Generally, our PRC subsidiaries, variable interest entities and their subsidiaries, which are considered PRC resident enterprises under PRC tax law, are subject to enterprise income tax on their worldwide taxable income as determined under PRC tax laws and accounting standards at a rate of 25%.
Hong Kong does not impose a withholding tax on dividends. 97 Table of Contents China Generally, our PRC subsidiaries, variable interest entities and their subsidiaries, which are considered PRC resident enterprises under PRC tax law, are subject to enterprise income tax on their worldwide taxable income as determined under PRC tax laws and accounting standards at a rate of 25%.
For the year ended December 31, 2020, 2021 and 2022, our selling and marketing expenses were RMB597.2 million, RMB751.0 million and RMB614.9 million (US$89.2 million), accounting for 10.3%, 14.2% and 19.0% of our revenues, respectively. Going forward, we intend to continue investing significant resources in our marketing, advertising and brand promotion efforts.
For the year ended December 31, 2021, 2022 and 2023, our selling and marketing expenses were RMB751.0 million, RMB614.9 million and RMB401.8 million (US$56.6 million), accounting for 14.2%, 19.0% and 16.1% of our revenues, respectively. Going forward, we intend to continue investing significant resources in our marketing, advertising and brand promotion efforts.
The following table sets forth our contractual obligations as of December 31, 2022. Payment Due by Period Less than More than Total 1 Year 1 - 3 Years 3 - 5 Years 5 Years (RMB in thousands) Operating lease obligation (1) 16,975 13,103 3,872 — — Note: (1) Operating lease obligation consist of the commitments under the lease agreements for our office premises and several factories.
The following table sets forth our contractual obligations as of December 31, 2023. Payment Due by Period Less than More than Total 1 Year 1-3 Years 3-5 Years 5 Years (RMB in thousands) Operating lease obligation (1) 6,679 3,738 2,736 205 — Note: (1) Operating lease obligation consist of the commitments under the lease agreements for our office premises and several factories.
We estimate the breakage portion based on historical customers’ requests and recognize estimated breakage as revenue in proportion to the pattern of rights exercised by end customers. The assessment of estimated breakage would be updated on a quarterly basis. Changes in estimated breakage should be accounted for by adjusting contract liabilities to reflect the remaining rights expected to be exercised.
We estimate the breakage portion based on historical customers’ requests and recognize estimated breakage as revenue in proportion to the pattern of rights exercised by end customers. The assessment of estimated breakage would be updated on a quarterly basis.
Revenue is recognized upon acceptance by this customer, which is considered at the time the control of the products is transferred to Xiaomi.
We also sell some Viomi-branded products to Xiaomi. Revenue is recognized upon acceptance by this customer, which is considered at the time the control of the products is transferred to Xiaomi.
Accounts and notes receivable Our accounts and notes receivable represent primarily accounts receivable from Xiaomi as well as accounts and notes receivable from third parties. As of December 31, 2020, 2021 and 2022, our accounts and notes receivable, net of allowance for doubtful accounts, were RMB1,036.4 million, RMB623.3 million and RMB602.1 million (US$87.3 million), respectively.
Accounts and notes receivable Our accounts and notes receivable represent primarily accounts receivable from Xiaomi as well as accounts and notes receivable from third parties. As of December 31, 2021, 2022 and 2023, our accounts and notes receivable, net of allowance for doubtful accounts, were RMB623.3 million, RMB602.1 million and RMB551.0 million (US$77.6 million), respectively.
General and administrative expenses increased by 24.6% from RMB97.7 million in 2021 to RMB121.7 million (US$17.6 million) in 2022, primarily due to an increase in the estimated allowance for accounts and notes receivables from a third-party client. Research and development .
Operating Expenses Our operating expenses decreased by 10.7% from RMB1,160.5 million in 2021 to RMB1,036.5 million in 2022. General and administrative . General and administrative expenses increased by 24.6% from RMB97.7 million in 2021 to RMB121.7 million in 2022, primarily due to an increase in the estimated allowance for accounts and notes receivables from a third-party client.
Accounts and notes payable Our accounts and notes payable represent primarily accounts and notes payable to contract manufacturers. As of December 31, 2020, 2021 and 2022, our accounts and notes payable were RMB1,001.4 million, RMB1,069.1 million and RMB844.1 million (US$122.4 million), respectively.
Accounts and notes payable Our accounts and notes payable represent primarily accounts and notes payable to contract manufacturers. As of December 31, 2021, 2022 and 2023, our accounts and notes payable were RMB1,069.1 million, RMB844.1 million and RMB666.3 million (US$93.9 million), respectively.
We believe that our cash and cash equivalents and restricted cash and our anticipated cash flows from operations will be sufficient to meet our current and anticipated needs for general corporate purposes for at least the next 12 months.
Our cash and cash equivalents primarily consist of cash on hand, demand deposits and highly liquid investments placed with banks. We believe that our cash and cash equivalents and restricted cash and our anticipated cash flows from operations will be sufficient to meet our current and anticipated needs for general corporate purposes for at least the next 12 months.
See footnote 13 to the Consolidated Financial Statements for more details. IoT @ Home portfolio We generate a significant portion of our revenues through sales of products under our IoT @ Home portfolio, which comprises smart kitchen products and other smart products. We have continued to diversify and expand our smart kitchen products over recent years.
For more details, see note 13 to our consolidated financial statements at the end of this annual report. IoT@Home portfolio products We generate a significant portion of our revenues through sales of products under our IoT@Home portfolio products, which comprises smart kitchen products and other smart products.
In addition, it may allocate a portion of its after-tax profits based on PRC accounting standards to discretionary reserve funds at its discretion. These reserves are not distributable as cash dividends. Historically, our PRC subsidiaries have not paid dividends to us, and it will not be able to pay dividends until it generates accumulated profits.
In addition, it may allocate a portion of its after-tax profits based on PRC accounting standards to discretionary reserve funds at its discretion. These reserves are not distributable as cash dividends.
Risk Factors—Risks Related to Doing Business in China—PRC regulation of loans to and direct investment in PRC entities by offshore holding companies and governmental control of currency conversion may delay or prevent us from using the proceeds of our securities offering to make loans or additional capital contributions to our PRC subsidiaries, which could materially and adversely affect our liquidity and our ability to fund and expand our business.” 110 Table of Contents The following table sets forth a summary of our cash flows for the periods presented: For the Year Ended December 31, 2020 2021 2022 RMB RMB RMB US$ Selected Consolidated Cash Flow Data: Net cash provided by/(used in) operating activities 185,196 308,968 (284,169) (41,202) Net cash (used in)/provided by investing activities (433,083) (265,321) 314,547 45,604 Net cash (used in)/provided by financing activities (146,375) 17,133 113,563 16,465 Effect of exchange rate changes on cash and cash equivalents (34,034) (12,703) 46,482 6,739 Net (decrease)/increase in cash and cash equivalents and restricted cash (428,296) 48,077 190,423 27,606 Cash and cash equivalents and restricted cash at the beginning of the year 1,003,005 574,709 622,786 90,295 Cash and cash equivalents and restricted cash at the end of the year 574,709 622,786 813,209 117,901 Operating activities Net cash used in operating activities was RMB284.2 million (US$41.2 million) in 2022.
Risk Factors—Risks Related to Doing Business in China—PRC regulation of loans to and direct investment in PRC entities by offshore holding companies and governmental control of currency conversion may delay or prevent us from using the proceeds of our securities offering to make loans or additional capital contributions to our PRC subsidiaries, which could materially and adversely affect our liquidity and our ability to fund and expand our business.” The following table sets forth a summary of our cash flows for the periods presented: For the Year Ended December 31, 2021 2022 2023 RMB RMB RMB US$ Selected Consolidated Cash Flow Data: Net cash provided by/(used in) operating activities 308,968 (284,169) (103,228) (14,540) Net cash (used in)/provided by investing activities (265,321) 314,547 (198,926) (28,019) Net cash provided by financing activities 17,133 113,563 115,657 16,290 Effect of exchange rate changes on cash and cash equivalents (12,703) 46,482 9,643 1,360 Net increase/(decrease) in cash and cash equivalents and restricted cash 48,077 190,423 (176,854) (24,909) Cash and cash equivalents and restricted cash at the beginning of the year 574,709 622,786 813,209 114,538 Cash and cash equivalents and restricted cash at the end of the year 622,786 813,209 636,355 89,629 Operating activities Net cash used in operating activities was RMB103.2 million (US$14.5 million) in 2023.
Our total accounts and notes receivable as of December 31, 2022 included RMB360.5 million (US$52.3 million) from Xiaomi and RMB130.2 million (US$18.9 million) from two e-commerce platforms. Our accounts and notes receivable turnover days were 65 days, 57 days and 69 days for the years ended December 31, 2020, 2021 and 2022, respectively.
Our total accounts and notes receivable as of December 31, 2023 included RMB324.2 million (US$45.7 million) from Xiaomi and RMB226.8 million (US$31.9 million) from two e-commerce platforms. Our accounts and notes receivable turnover days were 57 days, 69 days and 84 days for the years ended December 31, 2021, 2022 and 2023, respectively.
Under the cooperation agreement entered into between Xiaomi and us, we are responsible for design, research, development, production and delivery of designated products using the brand name of “Xiaomi,” or Xiaomi-branded products, and Xiaomi is responsible for commercial distributions and sales. We also sell some Viomi-branded products to Xiaomi.
Sales to Xiaomi From 2021 to 2023, we generated a substantial portion of our revenues from sales of products to Xiaomi. 105 Table of Contents Under the cooperation agreement entered into between Xiaomi and us, we are responsible for design, research, development, production and delivery of designated products using the brand name of “Xiaomi,” or Xiaomi-branded products, and Xiaomi is responsible for commercial distributions and sales.
Water purifiers products were previously entitled to second instalment payments, but such second instalment payment arrangement has terminated since the first quarter of 2020. 115 Table of Contents Sales to third-party customers, including: sales to leading e-commerce platforms and offline experience stores; and sales to customers directly through the online platforms operated by Xiaomi, third parties and us - Sales to leading e-commerce platforms and offline experience stores Pursuant to the contracts between leading e-commerce platforms/offline experience stores (the “e-commerce platforms and stores”) and us, the e-commerce platforms and stores have legal title and physical possession of the products upon acceptance and they would bear the inventory risk of loss due to physical damage before the products are transferred and accepted by end customers.
Sales to third-party customers, including: sales to leading e-commerce platforms and offline experience stores; and sales to customers directly through the online platforms operated by Xiaomi, third parties and us - Sales to leading e-commerce platforms and offline experience stores Pursuant to the contracts between leading e-commerce platforms/offline experience stores, or the E-Commerce Platforms and Stores, and us, the E-Commerce Platforms and Stores have legal title and physical possession of the products upon acceptance and they would bear the inventory risk of loss due to physical damage before the products are transferred and accepted by end customers.
The following table sets forth the components of our operating expenses, both in absolute amount and as a proportion of our net revenues, for the periods presented. For the Year Ended December 31, 2020 2021 2022 RMB % RMB % RMB US$ % Operating expenses: General and administrative 68,914 1.2 97,730 1.8 121,702 17,645 3.8 Research and development 265,680 4.6 311,786 5.9 299,950 43,489 9.3 Selling and marketing 597,176 10.3 751,011 14.2 614,887 89,150 19 Total 931,770 16.0 1,160,527 21.9 1,036,539 150,284 32.1 General and administrative .
The following table sets forth the components of our operating expenses, both in absolute amount and as a proportion of our net revenues, for the periods presented. For the Year Ended December 31, 2021 2022 2023 RMB % RMB % RMB US$ % Operating expenses: General and administrative 97,730 1.8 121,702 3.8 81,508 11,480 3.3 Research and development 311,786 5.9 299,950 9.3 222,911 31,396 8.9 Selling and marketing 751,011 14.2 614,887 19.0 401,766 56,588 16.1 Total 1,160,527 21.9 1,036,539 32.1 706,185 99,464 28.3 General and administrative .
The following table sets forth the breakdown of our net revenues by business lines both in absolute amounts and as a proportion of the net revenue for the periods indicated. For the Year Ended December 31, 2020 2021 2022 RMB % RMB % RMB US$ % Net revenues: IoT @ Home portfolio 3,671,717 63.0 3,400,966 64.1 1,619,941 234,869 50.1 Home water solutions 883,325 15.2 742,912 14.0 681,054 98,744 21.1 Consumables 382,896 6.6 367,021 6.9 358,442 51,969 11.1 Small appliances and others (1) 887,686 15.2 792,936 15.0 573,294 83,120 17.7 Total 5,825,624 100.0 5,303,835 100.0 3,232,731 468,702 100.0 Note : (1) Including sales of small appliances and rendering of services.
The following table sets forth the breakdown of our net revenues by business lines both in absolute amounts and as a proportion of the net revenue for the periods indicated. For the Year Ended December 31, 2021 2022 2023 RMB % RMB % RMB US$ % Net revenues: IoT@Home portfolio products 3,400,966 64.1 1,619,941 50.1 1,220,852 171,954 49.0 Home water solutions 742,912 14.0 681,054 21.1 604,012 85,073 24.2 Consumables 367,021 6.9 358,442 11.1 314,372 44,278 12.6 Small appliances and others (1) 792,936 15.0 573,294 17.7 354,150 49,881 14.2 Total 5,303,835 100.0 3,232,731 100.0 2,493,386 351,186 100.0 Note : (1) Including sales of small appliances and rendering of services.
(2)Share-based compensation expenses were allocated as follows: For the Year Ended December 31, 2020 2021 2022 RMB RMB RMB US$ General and administrative expenses 11,303 9,130 4,415 640 Research and development expenses 49,996 32,609 14,645 2,123 Selling and marketing expenses 10,904 5,666 500 72 Total 72,203 47,405 19,560 2,835 Year Ended December 31, 2022 Compared to Year Ended December 31, 2021 Net revenues Our net revenues decreased by 39.0% from RMB5,303.8 million in 2021 to RMB3,232.7 million (US$468.7 million) in 2022, primarily due to a decrease in revenues from IoT@Home portfolio and small appliances and others.
(2) Share-based compensation expenses were allocated as follows: 98 Table of Contents For the Year Ended December 31, 2021 2022 2023 RMB RMB RMB US$ General and administrative expenses 9,130 4,415 1,551 218 Research and development expenses 32,609 14,645 121 17 Selling and marketing expenses 5,666 500 (1,566) (221) Total 47,405 19,560 106 14 Year Ended December 31, 2023 Compared to Year Ended December 31, 2022 Net revenues Our net revenues decreased by 22.9% from RMB3,232.7 million in 2022 to RMB2,493.4 million (US$351.2 million) in 2023, primarily due to a decrease in revenues from the IoT@Home portfolio products as well as small appliances and others.
We base our estimates of sales return on historical results. We may provide sales incentives in the forms of discounts to end customers through online platforms in a bundle transaction. Revenue, recognized on a net basis after such sales incentives, are allocated based on the relative standalone selling prices for respective products.
We base our estimates of sales return on historical results. We may provide sales incentives in the forms of discounts to end customers through online platforms in a bundle transaction.
The customers cannot separately purchase the warranty and the warranty doesn’t provide the customer with additional service other than assurance that the product will function as expected. Therefore, these warranties are accounted for in accordance with ASC 460 Guarantees. At the time revenue is recognized, an estimate of warranty expenses is recorded.
We have the obligation, at the customer’s sole discretion, to either repair or replace the defective product. The customers cannot separately purchase the warranty and the warranty doesn’t provide the customer with additional service other than assurance that the product will function as expected. Therefore, these warranties are accounted for in accordance with ASC 460 Guarantees.
This information should be read together with our consolidated financial statements and related notes included elsewhere in this annual report. For the Year Ended December 31, 2020 2021 2022 RMB % RMB % RMB US$ % Net revenues (1) 5,825,624 100.0 5,303,835 100.0 3,232,731 468,702 100.0 Cost of revenues (4,742,668) (81.4) (4,105,767) (77.4) (2,495,638) (361,834) (77.2) Gross profit 1,082,956 18.6 1,198,068 22.6 737,093 106,868 22.8 Operating expenses (2) : Research and development expenses (2) (265,680) (4.6) (311,786) (5.9) (299,950) (43,489) (9.3) Selling and marketing expenses (2) (597,176) (10.3) (751,011) (14.2) (614,887) (89,150) (19) General and administrative expenses (2) (68,914) (1.2) (97,730) (1.8) (121,702) (17,645) (3.8) Total operating expenses (931,770) (16.0) (1,160,527) (21.9) (1,036,539) (150,284) (32.1) Other income, net 32,795 0.6 27,128 0.5 22,135 3,209 0.7 Income/(loss) from operations 183,981 3.2 64,669 1.2 (277,311) (40,207) (8.6) Interest income and short-term investment income, net 31,968 0.5 28,589 0.5 10,368 1,503 0.3 Income/(loss) before income tax expenses 217,767 3.7 94,630 1.8 (264,456) (38,343) (8.2) Income tax expenses (43,321) (0.7) (5,739) (0.1) (18,174) (2,635) (0.5) Net Income/(loss) 174,446 3.0 88,891 1.7 (282,630) (40,978) (8.7) Notes: (1) Includes RMB2,889.4 million, RMB2,295.6 and RMBRMB1,403.4 million (US$203.5 million) from sales to Xiaomi for the year ended December 31, 2020, 2021 and 2022, respectively.
This information should be read together with our consolidated financial statements and related notes included elsewhere in this annual report. For the Year Ended December 31, 2021 2022 2023 RMB % RMB % RMB US$ % Net revenues (1) 5,303,835 100.0 3,232,731 100.0 2,493,386 351,186 100.0 Cost of revenues (4,105,767) (77.4) (2,495,638) (77.2) (1,923,866) (270,971) (77.2) Gross profit 1,198,068 22.6 737,093 22.8 569,520 80,215 22.8 Operating expenses (2) : Research and development expenses (2) (311,786) (5.9) (299,950) (9.3) (222,911) (31,396) (8.9) Selling and marketing expenses (2) (751,011) (14.2) (614,887) (19) (401,766) (56,588) (16.1) General and administrative expenses (2) (97,730) (1.8) (121,702) (3.8) (81,508) (11,480) (3.3) Total operating expenses (1,160,527) (21.9) (1,036,539) (32.1) (706,185) (99,464) (28.3) Other income, net 27,128 0.5 22,135 0.7 17,510 2,466 0.7 Income (loss) from operations 64,669 1.2 (277,311) (8.6) (119,155) (16,783) (4.8) Interest income and short-term investment income, net 28,589 0.5 10,368 0.3 29,893 4,210 1.2 Income (loss) before income tax expenses 94,630 1.8 (264,456) (8.2) (87,598) (12,339) (3.5) Income tax expenses (5,739) (0.1) (18,174) (0.5) (1,735) (244) (0.1) Net Income (loss) 88,891 1.7 (282,630) (8.7) (89,333) (12,583) (3.6) Notes: (1) Includes RMB2,295.6, RMB1,403.4 million and RMB1,317.3 million (US$185.5 million) from sales to Xiaomi for the year ended December 31, 2021, 2022 and 2023, respectively.
As we continue to roll out new IoT products in other categories over time and generate additional revenues from our consumable products and small appliances and others, we expect our sources of revenues to continue to diversify both in terms of product as well as business mix.
In addition, as we continue to roll out new IoT products in other categories over time and generate additional revenues from our consumable products and small appliances and others, we expect our sources of revenues to continue to diversify both in terms of product as well as business mix. 95 Table of Contents Consumables We offer a range of consumable products complementary, and often essential, to our IoT products, which provide us with additional, recurring and ongoing revenue streams across the life cycle of our IoT products.
Judgment is required to determine standalone selling price for each distinct performance obligation and we then allocate the arrangement consideration to the separate accounting of each distinct performance obligation based on its relevant standalone selling price.
Changes in estimated breakage should be accounted for by adjusting contract liabilities to reflect the remaining rights expected to be exercised. 106 Table of Contents Judgment is required to determine standalone selling price for each distinct performance obligation and we then allocate the arrangement consideration to the separate accounting of each distinct performance obligation based on its relevant standalone selling price.
Accounts and notes payable turnover days for a given period are equal to average of the balances of accounts and notes payable, at the beginning and the end of the period divided by cost of revenues during the period and multiplied by the number of days during the period. 112 Table of Contents Material cash requirements Our material cash requirements as of December 31, 2022 and any subsequent interim period primarily include our capital expenditures, contractual obligations and capital commitments.
Accounts and notes payable turnover days for a given period are equal to average of the balances of accounts and notes payable, at the beginning and the end of the period divided by cost of revenues during the period and multiplied by the number of days during the period.
Sales to third-party channels as well as Viomi Store, our proprietary e-commerce platform, which constitute the vast majority of our Viomi-branded products business, accounted for 50.4%, 56.7% and 56.6% of our net revenues in 2020, 2021 and 2022, respectively. We introduced our premium water purifier sub-brand “Quanxian” in September 2020, with introduction of a series of large-flux water purifiers.
Sales to third-party channels as well as Viomi Store, our proprietary e-commerce platform, which constitute the vast majority of our Viomi-branded products business, accounted for 56.7%, 56.6% and 47.2% of our net revenues in 2021, 2022 and 2023, respectively. Xiaomi is our strategic partner, shareholder and customer.
Revenues from consumables decreased by 4.1% from RMB382.9 million in 2020 to RMB367.0 million in 2021, primarily due to decreased demands for purifier filter products. Small appliances and others .
Revenues from consumables decreased by 12.3% from RMB358.4 million in 2022 to RMB314.4million (US$44.3 million) in 2023, primarily due to decreased demands for purifier filter products. Small appliances and others .
As we continue to grow our business and introduce additional new products, both self-branded and Xiaomi-branded, to improve connectivity and synergies across our IoT @ Home platform and further promote the IoT @ Home lifestyle experience, we expect to deliver additional growth through repeat customer purchases, bundled sales, as well as additional monetization of our consumable products and value-added businesses.
As we continue to expand our product offerings and enhance connectivity and synergies across our IoT@Home platform, we aim to promote the IoT@Home lifestyle experience. Our strategy includes fostering growth through repeat customer purchases, bundled sales, and the monetization of our consumable products and value-added services.
Net cash provided by operating activities was RMB185.2 million in 2020. The difference between net cash provided by operating activities and our net income of RMB174.4 million was primarily due to RMB130.5 million used for working capital, partially offset by the adjustment of RMB72.2 million in share-based compensation, RMB54.3 million in depreciation and amortization and RMB22.6 million in inventory write-down.
The difference between net cash used in operating activities and our net loss of RMB89.3 million (US$12.6 million) was primarily due to RMB124.2 million used for working capital, partially offset by the adjustment of RMB64.9 million in depreciation and amortization, RMB13.9 million in allowance for doubtful accounts, and RMB31.1 million in inventory write-down.
Recent Accounting Pronouncements See Item 17 of Part III, “Financial Statements—Note 2—Significant accounting policies—Recently issued accounting pronouncements.” C. Research and Development, Patents and Licenses, Etc. See “Item 4. Information on the Company—B. Business Overview—Research and Development” and “—Intellectual Property.” D.
Recent Accounting Pronouncements See “Recently issued accounting pronouncements not yet adopted” included in note 2 to our consolidated financial statements at the end of this annual report. 104 Table of Contents C. Research and Development, Patents and Licenses, Etc. See “Item 4. Information on the Company—B. Business Overview—Research and Development” and “—Intellectual Property.” D.
The reserves established are regularly monitored based upon historical experience and any actual claims charged against the reserve. Warranty reserves are recorded as cost of revenues.
At the time revenue is recognized, an estimate of warranty expenses is recorded. The reserves established are regularly monitored based upon historical experience and any actual claims charged against the reserve. Warranty reserves are recorded as cost of revenues. 107 Table of Contents Net realizable value (“NRV”) of inventories Inventories are stated at the lower of cost or NRV.
While we expect the proportion of our revenues generated from our sales to Xiaomi to gradually decrease going forward, maintaining a mutually beneficial relationship with Xiaomi, including potential additional product collaborations, will continue to be important to our operations and future growth. 102 Table of Contents Seasonality We generally expect to experience seasonally higher sales in the second and fourth quarters, primarily attributable to the major shopping festivals and promotional activities across major e-commerce platforms in China, such as “618,” “Double Eleven” and “Double Twelve.” Given the impact of this seasonality, timely and effective forecasting and product supply and introductions for the peak seasons are critical to our operations.
Seasonality We generally expect to experience seasonally higher sales in the second and fourth quarters, primarily attributable to the major shopping festivals and promotional activities across major e-commerce platforms in China, such as “618,” “Double Eleven” and “Double Twelve.” Given the impact of this seasonality, timely and effective forecasting and product supply and introductions for the peak seasons are critical to our operations. 94 Table of Contents Key Components of Our Results of Operations Net revenues We derive our revenues from four key business lines: (i) our IoT@Home portfolio products, (ii) home water solutions, (iii) consumables, and (iv) small appliances and others.
Risk Factors—Risks Related to Doing Business in China—If we are classified as a PRC resident enterprise for PRC income tax purposes, such classification could result in unfavorable tax consequences to us and our non-PRC shareholders or ADS holders.” For the foreseeable future, we intend to use all the undistributed earnings of our variable interest entities and their subsidiaries incorporated in the PRC for our business operations and do not plan to have our PRC subsidiaries distribute any dividend.
Risk Factors—Risks Related to Doing Business in China—If we are classified as a PRC resident enterprise for PRC income tax purposes, such classification could result in unfavorable tax consequences to us and our non-PRC shareholders or ADS holders.” Results of Operations The following table sets forth a summary of our consolidated income for the periods presented, both in absolute amount and as a proportion of our net revenues for the periods presented.
As a Cayman Islands exempted company and offshore holding company, we are permitted under PRC laws and regulations to provide funding to our wholly foreign-owned subsidiaries in China only through loans or capital contributions, subject to the approval of government authorities and limits on the amount of capital contributions and loans.
The unrestricted portion, or amounts otherwise available for transfer in the form of dividends, loans or advances amounted to RMB1,022.0 million, RMB748.4 million and RMB695.4 million (US$97.9 million) as of December 31, 2021, 2022 and 2023, respectively. 101 Table of Contents As a Cayman Islands exempted company and offshore holding company, we are permitted under PRC laws and regulations to provide funding to our wholly foreign-owned subsidiaries in China through loans, subject to the approval of government authorities and limits on the amount, or we may make additional capital contributions to our wholly foreign-owned subsidiary in China.
As of December 31, 2020, 2021 and 2022, our inventory was RMB439.4 million, RMB576.4 million and RMB 502.3 million (US$72.8 million), respectively. Our inventory turnover days was 33 days, 45 days and 79 days for the years ended December 31, 2020, 2021 and 2022, respectively.
Working capital turnover Inventories Our inventory consists of finished products and raw materials. As of December 31, 2021, 2022 and 2023, our inventory was RMB576.4 million, RMB502.3 million and RMB442.2 million (US$62.3 million), respectively. Our inventory turnover days was 45 days, 79 days and 90 days for the years ended December 31, 2021, 2022 and 2023, respectively.
We used RMB433.1 million in investing activities in 2020, mainly as a result of RMB3,256.2 million used for the purchase of short-term investments and RMB215.6 million used for placement of short-term deposit, partially offset by RMB2,874.2 million from the maturity of short-term investments and RMB215.0 million from maturities of short-term deposits.
Investing activities We used RMB198.9 million (US$28.0 million) in investing activities in 2023, mainly as a result of RMB190.4 million used for the placement of short-term deposits, RMB110.1 million used for the purchase of equipment, RMB110.9 million used for the purchase of short-term investments, partially offset by RMB238.3 million received from the maturity of short-term investments.
In addition, to further diversify and strengthen our overall channel penetration and presence, we have expanded cooperation to increase our overall points of sales, particularly through cooperation with various O2O outlets of major e-commerce retailers, as well as establishing strategic partnership with leading domestic home design enterprises such as KUKA, all of which are expected to increase our end-points of sales and overall consumer awareness of our brand, products and concept.
Additionally, to diversify and strengthen our channel penetration, we have increased cooperation with various O2O outlets of major e-commerce retailers and have formed strategic partnerships with leading domestic home design companies such as KUKA. These initiatives are designed to expand our sales endpoints and enhance consumer awareness of our brand, products, and concepts.
Our contractual obligations mainly represent operating lease obligations, which consist of the commitments under the lease agreements for our office premises and several factories.
We currently plan to fund these expenditures with our current cash and cash equivalents, restricted cash, short-term investments and cash flow generated from our operating activities. Our contractual obligations mainly represent operating lease obligations, which consist of the commitments under the lease agreements for our office premises and several factories.
Warranty We offer product warranty pursuant to standard product quality required by the PRC Consumer Protection Law. The warranty period is calculated starting from the date when products are sold to the end customers. We have the obligation, at the customer’s sole discretion, to either repair or replace the defective product.
Revenue, recognized on a net basis after such sales incentives, are allocated based on the relative standalone selling prices for respective products. - Warranty We offer product warranty pursuant to standard product quality required by the PRC Consumer Protection Law. The warranty period is calculated starting from the date when products are sold to the end customers.
Operating Expenses Our operating expenses decreased by 10.7% from RMB1,160.5 million in 2021 to RMB1,036.5 million (US$150.3 million) in 2022. General and administrative .
Our gross margin remained stable at 22.8% in 2022 and 2023. Operating Expenses Our operating expenses decreased by 31.9% from RMB1,036.5 million in 2022 to RMB706.2 million (US$99.5 million) in 2023. General and administrative .