Biggest changeSelling, General, and Administrative Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Selling, general, and administrative $ 88,572 $ 65,857 $ 22,715 34.5 % The increase in selling, general, and administrative expense from 2021 to 2022 was primarily due to (1) incremental costs from our acquisition of IMG in November 2021 of $11.6 million, primarily consisting of employee-related expenses; (2) increased employee-related expenses (excluding IMG) of $5.5 million, which includes $1.4 million in increased share-based compensation expense; (3) loss accruals recorded in the first and third quarters of 2022 relating to expected settlements of employment-related legal matters totaling $4.1 million; (4) increased consulting and professional fees of $2.1 million; (5) increased depreciation expense and amortization of capitalized cloud-computing implementation costs of $1.1 million; (6) increased IT, software, and related services costs of $0.7 million; (7) increased travel costs of $0.6 million; and (8) increased occupancy-related costs of $0.5 million; partially offset by (9) reduced transaction costs associated with our acquisition of IMG of $4.1 million.
Biggest changeSelling, General, and Administrative Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Selling, general, and administrative $ 79,334 $ 88,572 $ (9,238) (10.4) % The decrease in selling, general, and administrative expense from 2022 to 2023 was primarily due to reduced employee-related expenses, inclusive of share-based compensation expense, of $6.0 million, loss accruals recorded in 2022 relating to an expected settlement of employment-related legal matters totaling $4.1 million, and reduced occupancy-related costs of $0.8 million, partially offset by increased information technology systems and related consulting and software costs of $1.7 million.
Although we do not have any long-term contracts that require customers to place orders with us, Lam Research and Applied Materials have been our customers for over a decade. Acquisitions In November 2021, we acquired IMG, a California-based leader in precision machining and specialty joining and plating, for approximately $270.0 million.
Although we do not have any long-term contracts that require customers to place orders with us, Applied Materials, Lam Research, and ASML have been our customers for over a decade. Acquisitions In November 2021, we acquired IMG, a California-based leader in precision machining and specialty joining and plating, for approximately $270.0 million.
We expect selling expenses to increase in absolute dollars as we continue to invest in expanding our markets and as we expand our international operations. We expect general and administrative expenses to also increase in absolute dollars due to an increase in employee-related costs, regulatory compliance, and accounting expenses.
We expect selling expenses to increase in absolute dollars as we continue to invest in expanding our markets and as we expand our international operations. We expect general and administrative expenses to also increase in absolute dollars as our business grows, due to an increase in employee-related costs, regulatory compliance, and accounting-related expenses.
Our customers often require reduced prices or other pricing, quality, or delivery commitments as a condition to their purchasing from us in any given period or increasing their purchase volume, which can, among other things, result in reduced gross margins in order to maintain or expand our market share.
Our customers often require reduced prices or other pricing, quality, or delivery commitments as a condition to their purchasing from us or increasing their purchase volume, which can, among other things, result in reduced gross margins in order to maintain or expand our market share.
Cyclicality of Semiconductor Capital Equipment Industry Our business is subject to the cyclicality of the capital expenditures of the semiconductor industry, which drives cyclicality in the semiconductor capital equipment industry in which we operate. In 2022, we derived over 90% of our sales from the semiconductor capital equipment industry.
Cyclicality of Semiconductor Capital Equipment Industry Our business is subject to the cyclicality of the capital expenditures of the semiconductor industry, which drives cyclicality in the semiconductor capital equipment industry in which we operate. In 2023, we derived over 90% of our sales from the semiconductor capital equipment industry.
Non-GAAP gross profit, operating income, and net income are defined as: gross profit, operating income, or net income, respectively, excluding (1) amortization of intangible assets, share-based compensation expense, and discrete or infrequent charges and gains that are outside of normal business operations, including acquisition-related costs, contract and legal settlement gains and losses, facility shutdown costs, and severance costs associated with reduction-in-force programs, to the extent they are present in gross profit, operating income, and net income; and (2) the tax impacts associated with these non-GAAP adjustments, as well as non-recurring discrete tax items.
Non-GAAP gross profit, operating income, and net income are defined as: gross profit, operating income (loss), or net income (loss), respectively, excluding (1) amortization of intangible assets, share-based compensation expense, and discrete or infrequent charges and gains that are outside of normal business operations, including acquisition-related costs, contract and legal settlement gains and losses, facility shutdown costs, and severance costs associated with reduction-in-force programs, to the extent they are present in gross profit, operating income (loss), and net income (loss), respectively; and (2) the tax impacts associated with these non-GAAP adjustments, as well as non-recurring discrete tax items, including deferred tax asset valuation allowance changes.
Selling, general, and administrative – Selling expense consists primarily of salaries and commissions paid to our sales and sales support employees and other costs related to the sales of our products. General and administrative expense consists primarily of salaries and overhead associated with our administrative staff, professional fees, and depreciation and other allocated facility related costs.
Selling, general, and administrative – Selling expense consists primarily of salaries and commissions paid to our sales and sales support employees and other costs related to the sales of our products. General and administrative expense consists primarily of salaries, professional fees, and overhead associated with our administrative staff.
The following table presents our unaudited non‑GAAP gross profit and non-GAAP gross margin and a reconciliation from gross profit, the most comparable GAAP measure, for the periods indicated: Year Ended December 30, 2022 December 31, 2021 (dollars in thousands) U.S.
The following table presents our unaudited non‑GAAP gross profit and non-GAAP gross margin and a reconciliation from gross profit, the most comparable GAAP measure, for the periods indicated: Year Ended December 29, 2023 December 30, 2022 (dollars in thousands) U.S.
Once the value of inventory is adjusted, the original cost of our inventory, less the write-down, represents its new cost basis. During 2022, 2021, and 2020, we wrote down inventory determined to be excessive or obsolete by $5.0 million, $1.9 million, and $4.6 million, respectively.
Once the value of inventory is adjusted, the original cost of our inventory, less the write-down, represents its new cost basis. During 2023, 2022, and 2021, we wrote down inventory determined to be excessive or obsolete by $9.8 million, $5.0 million, and $1.9 million, respectively.
Interest Expense Interest expense consists of interest on our outstanding debt under our credit facilities, including amortization of debt issuance costs, and any other indebtedness we may incur in the future.
Interest Expense, Net Interest expense, net of interest income on our cash deposits, consists of interest on our outstanding debt under our credit facilities, including amortization of debt issuance costs, and any other indebtedness we may incur in the future.
Accordingly, these transactions are not subject to material exchange rate fluctuations. 30 Income Tax Expense Income tax expense consists primarily of taxes on our taxable income related to our domestic and foreign operations, offset by the benefit of our tax holiday in Singapore, which was extended through 2026.
Accordingly, these transactions are not subject to material exchange rate fluctuations. Income Tax Expense Income tax expense consists primarily of taxes on our taxable income related to our domestic and foreign operations, offset by the benefit of our tax holiday in Singapore, which is expected to continue through 2026.
Personnel costs are the most significant component of operating expenses and consist of salaries, benefits, bonuses, and share-based compensation. Operating expenses also include overhead costs for facilities, IT, and depreciation. In addition, our operating expenses include amortization expense of acquired intangible assets and certain non-recurring costs, including facility shutdown costs and executive transition-related costs.
Personnel costs are the most significant component of operating expenses and consist of salaries, benefits, bonuses, and share-based compensation. Operating expenses also include overhead costs for facilities, IT, and depreciation. In addition, our operating expenses include amortization expense of acquired intangible assets.
Since the gross margin on each of our products differs, our overall gross margin as a percentage of our sales changes based on the mix of products we sell in any period. Operating Expenses Our operating expenses primarily include research and development and sales, general, and administrative expenses.
Additionally, since the gross margin on each of our products can differ, our overall gross margin as a percentage of our sales can change based on the mix of products we sell in any period. 37 Table of Contents Operating Expenses Our operating expenses primarily include research and development and sales, general, and administrative expenses.
Material Cash Requirements Our primary liquidity requirements arise from: (i) working capital requirements, including procurement of raw materials inventory for use in our factories and employee-related costs, (ii) business acquisitions, (iii) interest and principal payments under our credit facilities, (iv) research and development investments and capital expenditures, and (v) payment of income taxes.
Our cash and cash equivalents are maintained in highly liquid and accessible accounts with no significant restrictions. 45 Table of Contents Material Cash Requirements Our primary liquidity requirements arise from: (i) working capital requirements, including procurement of raw materials inventory for use in our factories and employee-related costs, (ii) business acquisitions, (iii) interest and principal payments under our credit facilities, (iv) research and development investments and capital expenditures, and (v) payment of income taxes.
( 3 ) Included in this amount for 2022 are severance costs associated with our global reduction-in-force program that began near the end of 2022. 35 The following table presents our unaudited non ‑GAAP operating income and non-GAAP operating margin and a reconciliation from operating income, the most comparable GAAP measure, for the periods indicated: Year Ended December 30, 2022 December 31, 2021 (dollars in thousands) U.S.
(2) Included in this amount are severance costs associated with our global reduction-in-force programs. 43 Table of Contents The following table presents our unaudited non‑GAAP operating income and non-GAAP operating margin and a reconciliation from operating income (loss), the most comparable GAAP measure, for the periods indicated: Year Ended December 29, 2023 December 30, 2022 (dollars in thousands) U.S.
Year Ended December 30, 2022 December 31, 2021 (dollars in thousands, except per share amounts) Net sales $ 1,280,069 $ 1,096,917 Gross margin 16.6 % 16.2 % Gross margin, non-GAAP 17.0 % 16.7 % Operating margin 6.7 % 7.4 % Operating margin, non-GAAP 9.8 % 10.7 % Net income $ 72,804 $ 70,899 Net income, non-GAAP $ 104,863 $ 97,698 Diluted EPS $ 2.51 $ 2.45 Diluted EPS, non-GAAP $ 3.62 $ 3.37 28 Key Factors Affecting Our Business Investment in Semiconductor Manufacturing Equipment The design and manufacturing of semiconductor devices is constantly evolving and becoming more complex in order to achieve greater performance and efficiency.
Year Ended December 29, 2023 December 30, 2022 (dollars in thousands, except per share amounts) Net sales $ 811,120 $ 1,280,069 Gross margin 12.7 % 16.6 % Gross margin, non-GAAP 13.4 % 17.0 % Operating margin (1.3) % 6.7 % Operating margin, non-GAAP 2.9 % 9.8 % Net income (loss) $ (42,985) $ 72,804 Net income, non-GAAP $ 12,257 $ 104,863 Diluted EPS $ (1.47) $ 2.51 Diluted EPS, non-GAAP $ 0.42 $ 3.62 35 Table of Contents Key Factors Affecting Our Business Investment in Semiconductor Manufacturing Equipment The design and manufacturing of semiconductor devices is constantly evolving and becoming more complex in order to achieve greater performance and efficiency.
Sales We generate sales primarily from the design, manufacture, and sale of subsystems and components primarily for semiconductor capital equipment. Sales are recognized when control of promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.
Sales are recognized when control of promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.
Non-GAAP results have limitations as an analytical tool, and you should not consider them in isolation or as a substitute for our results reported under GAAP. Other companies may calculate non-GAAP results differently or may use other measures to evaluate their performance, both of which could reduce the usefulness of our non-GAAP results as a tool for comparison.
Other companies may calculate non-GAAP results differently or may use other measures to evaluate their performance, both of which could reduce the usefulness of our non-GAAP results as a tool for comparison. Because of these limitations, you should consider non-GAAP results alongside other financial performance measures and results presented in accordance with GAAP.
Other Expense (Income), Net Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Other expense (income), net $ (563 ) $ 807 $ (1,370 ) n/m The change in other expense (income), net from 2021 to 2022 was primarily due to currency exchange rate fluctuations during the year, reflecting an overall strengthening U.S. dollar against local currency payables of our foreign operations .
Other Expense (Income), Net Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Other expense (income), net $ 804 $ (563) $ 1,367 n/m The change in other expense (income), net from 2022 to 2023 was primarily due to currency exchange rate fluctuations during the year related to our local currency payables of our foreign operations.
GAAP operating income $ 85,823 $ 81,014 Non-GAAP adjustments: Amortization of intangible assets 17,905 14,918 Share-based compensation 13,924 11,473 Facility shutdown costs (1) — 2,996 Settlement loss (2) 4,146 — Fair value adjustment to inventory from acquisitions (3) 2,492 1,652 Acquisition costs (4) 296 4,386 Other (5) 1,144 498 Non-GAAP operating income $ 125,730 $ 116,937 U.S.
GAAP operating income (loss) $ (10,895) $ 85,823 Non-GAAP adjustments: Amortization of intangible assets 14,734 17,905 Share-based compensation 17,338 13,924 Settlement loss (1) — 4,146 Fair value adjustment to inventory from acquisitions (2) — 2,492 Acquisition costs (3) — 296 Other (4) 2,298 1,144 Non-GAAP operating income $ 23,475 $ 125,730 U.S.
The following table sets forth a summary of operating, investing, and financing activities for the periods presented: Year Ended December 30, 2022 December 31, 2021 December 25, 2020 (in thousands) Cash provided by operating activities $ 31,453 $ 15,272 $ 38,259 Cash used in investing activities (28,933 ) (289,585 ) (14,597 ) Cash provided by financing activities 8,455 96,909 168,625 Net increase (decrease) in cash $ 10,975 $ (177,404 ) $ 192,287 Our cash provided by operating activities of $31.5 million during the year ended December 30, 2022 consisted of net income of $72.8 million and net non-cash charges of $46.3 million, which consisted primarily of depreciation and amortization of $35.1 million and share-based compensation expense of $13.9 million, partially offset by an increase in our net operating assets and liabilities of $87.6 million.
The following table sets forth a summary of operating, investing, and financing activities for the periods presented: Year Ended December 29, 2023 December 30, 2022 December 31, 2021 (in thousands) Cash provided by operating activities $ 57,632 $ 31,453 $ 15,272 Cash used in investing activities (15,496) (28,933) (289,585) Cash provided by (used in) financing activities (48,651) 8,455 96,909 Net increase (decrease) in cash $ (6,515) $ 10,975 $ (177,404) Our cash provided by operating activities of $57.6 million during 2023 consisted of net loss of $43.0 million, offset by net non-cash charges of $61.7 million, which consisted primarily of depreciation and amortization of $34.6 million, share-based compensation expense of $17.3 million, and deferred income taxes of $9.3 million, and a decrease in our net operating assets and liabilities of $38.9 million.
GAAP net income $ 72,804 $ 70,899 Non-GAAP adjustments: Amortization of intangible assets 17,905 14,918 Share-based compensation 13,924 11,473 Facility shutdown costs (1) — 2,996 Settlement loss (2) 4,146 — Fair value adjustment to inventory from acquisitions (3) 2,492 1,652 Acquisition costs (4) 296 4,386 Other (5) 1,144 498 Loss on extinguishment of debt (6) — 737 Tax adjustments related to non-GAAP adjustments (7) (7,848 ) (9,861 ) Non-GAAP net income $ 104,863 $ 97,698 U.S.
GAAP net income (loss) $ (42,985) $ 72,804 Non-GAAP adjustments: Amortization of intangible assets 14,734 17,905 Share-based compensation 17,338 13,924 Settlement loss (1) — 4,146 Fair value adjustment to inventory from acquisitions (2) — 2,492 Acquisition costs (3) — 296 Other (4) 2,298 1,144 Tax adjustments related to non-GAAP adjustments (5) 9,778 (7,848) Tax expense from valuation allowance (6) 11,094 — Non-GAAP net income $ 12,257 $ 104,863 U.S.
In 2022, our top two customers were Lam Research and Applied Material, accounting for a combined 79% of sales.
In 2023, our top three customers were Applied Materials, Lam Research, and ASML, accounting for a combined 82% of sales.
GAAP gross profit $ 211,864 $ 177,480 Non-GAAP adjustments: Share-based compensation 2,056 1,384 Facility shutdown costs (1) — 2,611 Fair value adjustment to inventory from acquisitions (2) 2,492 1,652 Other (3) 933 106 Non-GAAP gross profit $ 217,345 $ 183,233 U.S.
GAAP gross profit $ 103,396 $ 211,864 Non-GAAP adjustments: Share-based compensation 3,130 2,056 Fair value adjustment to inventory from acquisitions (1) — 2,492 Other (2) 2,191 933 Non-GAAP gross profit $ 108,717 $ 217,345 U.S.
(2) During the first and third quarters of 2022, we recorded loss accruals of $3.1 million and $1.0 million, respectively, relating to expected settlements of employment-related legal matters. We expect the settlements to be finalized and paid within 12 months.
GAAP operating margin (1.3) % 6.7 % Non-GAAP operating margin 2.9 % 9.8 % (1) During the first and third quarters of 2022, we recorded non-recurring loss accruals of $3.1 million and $1.0 million, respectively, relating to expected settlements of employment-related legal matters.
Year Ended December 30, 2022 December 31, 2021 (in thousands) Net sales $ 1,280,069 $ 1,096,917 Cost of sales 1,068,205 919,437 Gross profit 211,864 177,480 Operating expenses: Research and development 19,564 15,691 Selling, general, and administrative 88,572 65,857 Amortization of intangible assets 17,905 14,918 Total operating expenses 126,041 96,466 Operating income 85,823 81,014 Interest expense, net 11,056 6,451 Other expense (income), net (563 ) 807 Income before income taxes 75,330 73,756 Income tax expense 2,526 2,857 Net income $ 72,804 $ 70,899 31 The following table sets forth our results of operations as a percentage of our total sales for the periods presented.
Year Ended December 29, 2023 December 30, 2022 (in thousands) Net sales $ 811,120 $ 1,280,069 Cost of sales 707,724 1,068,205 Gross profit 103,396 211,864 Operating expenses: Research and development 20,223 19,564 Selling, general, and administrative 79,334 88,572 Amortization of intangible assets 14,734 17,905 Total operating expenses 114,291 126,041 Operating income (loss) (10,895) 85,823 Interest expense, net 19,379 11,056 Other expense (income), net 804 (563) Income (loss) before income taxes (31,078) 75,330 Income tax expense 11,907 2,526 Net income (loss) $ (42,985) $ 72,804 39 Table of Contents The following table sets forth our results of operations as a percentage of our total sales for the periods presented.
For a description of our non-GAAP metrics and reconciliations to the most comparable GAAP metrics, please refer to Item 7 – Management’s Discussion and Analysis of Financial Condition and Results of Operations – Non-GAAP Financial Results within this Annual Report.
Item 7. – Management’s Discussion and Analysis of Financial Condition and Results of Operations – Non-GAAP Financial Results within this Annual Report.
Liquidity and Capital Resources The following section discusses our liquidity and capital resources, including our primary sources of liquidity and our material cash requirements. Our cash and cash equivalents are maintained in highly liquid and accessible accounts with no significant restrictions .
Liquidity and Capital Resources The following section discusses our liquidity and capital resources, including our primary sources of liquidity and our material cash requirements.
Year Ended December 30, 2022 December 31, 2021 Net sales 100.0 100.0 Cost of sales 83.4 83.8 Gross profit 16.6 16.2 Operating expenses: Research and development 1.5 1.4 Selling, general, and administrative 6.9 6.0 Amortization of intangible assets 1.4 1.4 Total operating expenses 9.8 8.8 Operating income 6.7 7.4 Interest expense, net 0.9 0.6 Other expense (income), net 0.0 0.1 Income before income taxes 5.9 6.7 Income tax expense 0.2 0.3 Net income 5.7 6.5 Comparison of 2022 and 2021 Net Sales Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Net sales $ 1,280,069 $ 1,096,917 $ 183,152 16.7 % The increase in net sales from 2021 to 2022 was primarily due to strong demand from our customers as a result of continued growth in the global wafer fabrication equipment market throughout much of 2022, as well as incremental sales from our acquisition of IMG in November 2021.
Year Ended December 29, 2023 December 30, 2022 Net sales 100.0 100.0 Cost of sales 87.3 83.4 Gross profit 12.7 16.6 Operating expenses: Research and development 2.5 1.5 Selling, general, and administrative 9.8 6.9 Amortization of intangible assets 1.8 1.4 Total operating expenses 14.1 9.8 Operating income (loss) (1.3) 6.7 Interest expense, net 2.4 0.9 Other expense (income), net 0.1 0.0 Income (loss) before income taxes (3.8) 5.9 Income tax expense 1.5 0.2 Net income (loss) (5.3) 5.7 Comparison of 2023 and 2022 Net Sales Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Net sales $ 811,120 $ 1,280,069 $ (468,949) (36.6) % The decrease in net sales from 2022 to 2023 was primarily due to reduced customer demand stemming from reduced spending within the semiconductor capital equipment industry.
In 2022, the tax benefit resulting from our Singapore tax holiday, compared to the Singapore statutory tax rate, was approximately $11.7 million. Income tax is also impacted by certain withholding taxes, stock option and restricted share unit (“RSU”) activity, and credit generation. Critical Accounting Estimates Our consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles.
Income tax is also impacted by certain withholding taxes, stock option and restricted share unit (“RSU”) activity, and credit generation. 38 Table of Contents Critical Accounting Estimates Our consolidated financial statements have been prepared in accordance with GAAP.
The increase in our net operating assets and liabilities was primarily due to a decrease in accounts payable of $50.2 million and an increase in inventories of $47.5 million, partially offset by a decrease in accounts receivable of $6.7 million. Cash used in investing activities during 2022 primarily consisted of capital expenditures of $29.4 million.
The decrease in our net operating assets and liabilities of $38.9 million was primarily due to a decrease in accounts receivable and inventories of $69.6 million and $37.8 million, respectively, partially offset by a decrease in accounts payable and accrued and other liabilities of $51.0 million and $27.7 million, respectively. Cash provided by operating activities was $31.5 million during 2022.
Sources and Conditions of Liquidity Our ongoing sources of liquidity to fund our material cash requirements are primarily derived from: (i) sales to our customers and the related changes in our net operating assets and liabilities and (ii) proceeds from our credit facilities and equity offerings, when applicable. 37 Summary of Cash Flows We ended 2022 with cash and cash equivalents of $86.5 million, an increase of $11.0 million from 2021, which was primarily due to cash provided by operating activities of $31.5 million and net proceeds from our credit facilities of $7.5 million, partially offset by capital expenditures of $29.4 million.
Sources and Conditions of Liquidity Our ongoing sources of liquidity to fund our material cash requirements are primarily derived from: (i) sales to our customers and the related changes in our net operating assets and liabilities and (ii) proceeds from our credit facilities and equity offerings, when applicable.
( 2 ) As part of the purchase price allocations of our acquisitions of IMG in November 2021 and a precision machining operation in Mexico in December 2020, we recorded acquired-inventories at fair value, resulting in a fair value step-up. These amounts represent the release of the step-up to cost of sales as acquired-inventories were sold.
(2) As part of the purchase price allocations of our acquisition of IMG, we recorded acquired-inventories at fair value, resulting in a fair value step-up. This amount represents the release of the step-up to cost of sales as acquired-inventories were sold. (3) Included in this amount are transaction-related costs incurred in connection with our acquisition of IMG.
Research and Development Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Research and development $ 19,564 $ 15,691 $ 3,873 24.7 % The increase in research and development expenses from 2021 to 2022 was primarily due to increased employee-related expense of $2.6 million, inclusive of increased share-based compensation expense of $0.3 million, as we expand our engineering team to design and engineer next generation, high performance solutions for our customers, as well as increased program costs, including consulting, travel, materials, and fixtures costs, related to the development of our new products .
Research and Development Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Research and development $ 20,223 $ 19,564 $ 659 3.4 % The increase in research and development expenses from 2022 to 2023 was primarily due to increased materials and professional fees of $1.0 million for program costs related to the development of our new products, partially offset by lower employee related expenses, inclusive of share-based compensation expense, of $0.5 million.
Our business has a highly variable cost structure with low fixed overhead as a percentage of cost of sales. In addition, our existing global manufacturing plant capacity is scalable, and we are able to adjust to increased customer demand for our products without significant additional capital investment.
Our existing global manufacturing plant capacity is scalable, and we are able to adjust to increased customer demand for our products without significant additional capital investment. We operate our business in this manner to avoid having excessive fixed costs during a cyclical downturn, while retaining flexibility to expand our production volumes during periods of growth.
(3) As part of the purchase price allocations of our acquisitions of IMG in November 2021 and a precision machining operation in Mexico in December 2020, we recorded acquired-inventories at fair value, resulting in a fair value step-up. These amounts represent the release of the step-up to cost of sales as acquired-inventories were sold.
(2) As part of the purchase price allocation of our acquisition of IMG, we recorded acquired-inventories at fair value, resulting in a fair value step-up. This amount represents the release of the step-up to cost of sales as acquired-inventories were sold. (3) Included in this amount are transaction-related costs incurred in connection with our acquisition of IMG.
Amortization of Intangible Assets Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Amortization of intangibles assets $ 17,905 $ 14,918 $ 2,987 20.0 % The increase in amortization expense from 2021 to 2022 was primarily due to incremental amortization expense from intangible assets acquired in connection with our acquisition of IMG, partially offset by reduced amortization expense from certain intangible assets becoming fully amortized in the fourth quarter of 2021 and the first quarter of 2022 . 33 Interest Expense , Net Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Interest expense, net $ 11,056 $ 6,451 $ 4,605 71.4 % Weighted average borrowings outstanding $ 303,036 $ 187,028 $ 116,008 62.0 % Weighted average borrowing rate 3.37 % 2.74 % + 63 bps The increase in interest expense, net from 2021 to 2022 was due to a $116.0 million increase in our average amount borrowed during the year and a 63 basis point increase in our weighted average borrowing rate.
Amortization of Intangible Assets Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Amortization of intangibles assets $ 14,734 $ 17,905 $ (3,171) (17.7) % The decrease in amortization expense from 2022 to 2023 was primarily due to certain intangible assets becoming fully amortized in 2023. 41 Table of Contents Interest Expense, Net Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Interest expense, net $ 19,379 $ 11,056 $ 8,323 75.3 % Weighted average borrowings outstanding $ 292,661 $ 303,036 $ (10,375) (3.4 %) Weighted average borrowing rate 6.80 % 3.37 % + 343 bps The increase in interest expense, net from 2022 to 2023 was due to increases in our weighted average borrowing rate, partially offset by decreases in our average amount borrowed.
(3) As part of the purchase price allocations of our acquisitions of IMG in November 2021 and a precision machining operation in Mexico in December 2020, we recorded acquired-inventories at fair value, resulting in a fair value step-up. These amounts represent the release of the step-up to cost of sales as acquired-inventories were sold.
GAAP gross margin 12.7 % 16.6 % Non-GAAP gross margin 13.4 % 17.0 % (1) As part of the purchase price allocation of our acquisition of IMG in November 2021, we recorded acquired-inventories at fair value, resulting in a fair value step-up. This amount represents the release of the step-up to cost of sales as acquired-inventories were sold.
Cash provided by financing activities during 2022 consisted of net proceeds from our credit facilities of $7.5 million and net proceeds from share-based compensation activity of $1.0 million. Recent Accounting Pronouncements From time to time, the Financial Accounting Standards Board (“FASB”) or other standards setting bodies issue new accounting pronouncements.
Cash provided by financing activities during 2022 consisted of net proceeds from our credit facilities of $7.5 million and net proceeds from share-based compensation activity of $1.0 million.The change in net payments on, and net proceeds from, our facilities relates to fluctuations in cash required for working capital purposes relative to the geographic distribution of available cash during the periods then ended.
Non-GAAP diluted EPS is defined as non-GAAP net income divided by weighted average diluted ordinary shares outstanding during the period. Non-GAAP gross margin and non-GAAP operating margin are defined as non-GAAP gross profit and non-GAAP operating income, respectively, divided by net sales.
All non-GAAP adjustments are presented on a gross basis; the related income tax effects, including current and deferred income tax expense, are included in the adjustment line under the heading "Tax adjustments related to non-GAAP adjustments." Non-GAAP diluted earnings per shares ("EPS") is defined as non-GAAP net income divided by weighted average diluted ordinary shares outstanding during the period.
Macroeconomic factors have, however, created, and may continue to create, volatility and uncertainty in our industry, including persistent levels of high inflation, higher interest rates, foreign currency rate fluctuations, and supply chain challenges.
In particular, industry overcapacity and a number of macroeconomic factors may have contributed to this reduced spending environment, including persistent levels of high inflation, higher interest rates, supply chain disruptions, and other macroeconomic uncertainties.
Our shipping terms are generally “shipping point.” Accordingly, control transfers, and sales are recognized, at the point-in-time of shipment. Cost of Sales and Gross Profit Cost of sales consists primarily of purchased materials, direct labor, indirect labor, factory overhead cost, and depreciation expense for our manufacturing facilities and equipment.
Cost of Sales and Gross Profit Cost of sales consists primarily of purchased materials, direct labor, indirect labor, factory overhead cost, and depreciation expense for our manufacturing facilities and equipment. Our business has a variable cost structure, with fixed costs comprising a smaller percentage of cost of sales compared to variable costs.
Included in this amount are costs and charges directly related to the facility closure. ( 2 ) During the first and third quarters of 2022, we recorded loss accruals of $3.1 million and $1.0 million, respectively, relating to expected settlements of employment-related legal matters. We expect the settlements to be finalized and paid within 12 months.
GAAP diluted EPS $ (1.47) $ 2.51 Non-GAAP diluted EPS $ 0.42 $ 3.62 Shares used to compute diluted non-GAAP EPS 29,514,553 28,963,031 (1) During the first and third quarters of 2022, we recorded non-recurring loss accruals of $3.1 million and $1.0 million, respectively, relating to expected settlements of employment-related legal matters.
The following table presents our unaudited non‑GAAP net income and non-GAAP diluted EPS and a reconciliation from net income, the most comparable GAAP measure, for the periods indicated: Year Ended December 30, 2022 December 31, 2021 (dollars in thousands, except per share amounts) U.S.
(4) Included in this amount are severance costs associated with our global reduction-in-force programs. 44 Table of Contents The following table presents our unaudited non‑GAAP net income and non-GAAP diluted EPS and a reconciliation from net income (loss), the most comparable GAAP measure, for the periods indicated.
Cost of Sales and Gross Profit Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Cost of sales $ 1,068,205 $ 919,437 $ 148,768 16.2 % Gross profit $ 211,864 $ 177,480 $ 34,384 19.4 % Gross margin 16.6 % 16.2 % + 40 bps The increase in the gross amounts of cost of sales and gross profit from 2021 to 2022 was primarily due to the factors mentioned in the commentary above under the above heading, Net Sales . 32 The 40 basis point increase in gross margin from 2021 to 2022 was primarily due to increased factory utilization and operating leverage, as well as accretive margins from our acquisition of IMG in November 2021, partially offset by increased materials, logistics, and labor costs observed throughout 2022.
On a relative basis, net sales to international customers as a percent of total net sales increased from 55.3% in 2022 to 65.3% in 2023. 40 Table of Contents Cost of Sales and Gross Profit Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Cost of sales $ 707,724 $ 1,068,205 $ (360,481) (33.7 %) Gross profit $ 103,396 $ 211,864 $ (108,468) (51.2 %) Gross margin 12.7 % 16.6 % -390 bps The decrease in the gross amounts of cost of sales and gross profit from 2022 to 2023 was primarily due to the factors mentioned in the commentary above under the above heading, " Net Sales" .
Income Tax Expense Year Ended Change December 30, 2022 December 31, 2021 Amount % (dollars in thousands) Income tax expense $ 2,526 $ 2,857 $ (331 ) -11.6 % Income before income taxes $ 75,330 $ 73,756 $ 1,574 2.1 % Effective income tax rate 3.4 % 3.9 % - 50 bps The decrease in income tax expense from 2021 to 2022 was primarily due to decreased taxable income in the U.S., partially offset by reduced benefits from share-based compensation activity.
Income Tax Expense Year Ended Change December 29, 2023 December 30, 2022 Amount % (dollars in thousands) Income tax expense $ 11,907 $ 2,526 $ 9,381 371.4 % Income before income taxes $ (31,078) $ 75,330 $ (106,408) n/m Effective income tax rate (38.3) % 3.4 % -4,170 bps The increase in income tax expense from 2022 to 2023 was primarily due to recording a valuation allowance against our U.S. federal and state deferred tax assets, resulting in an $11.1 million charge to income tax expense during the second quarter of 2023.
Net sales to U.S. customers increased by $38.0 million in 2022 to $572.1 million. On a relative basis, net sales to U.S. customers as a percent of total net sales decreased from 49.6% in 2021 to 44.7% in 2022. Net sales to international customers increased by $155.1 million in 2022 to $707.9 million.
Further detail is provided above under the section entitled "Key Factors Affecting Our Business". Net sales to U.S. customers decreased by $290.8 million in 2023 to $281.3 million. On a relative basis, net sales to U.S. customers as a percent of total net sales decreased from 44.7% in 2022 to 34.7% in 2023.
We intend to continue to evaluate opportunistic acquisitions to supplement our organic growth, and any such acquisitions could have a material impact on our business and results of operations.
We intend to continue to evaluate opportunistic acquisitions to supplement our organic growth, and any such acquisitions could have a material impact on our business and results of operations. 36 Table of Contents Macroeconomic Conditions The semiconductor industry is cyclical in nature, and matching customer demand can be challenging based on a variety of factors, including market trends, supply chain shortages and related lead times, customer buying patterns, availability of skilled labor, and macroeconomic and other factors.
While these challenging macroeconomic conditions may impact business and customers in the near-term, we believe secular demand for semiconductors, both in quantity and performance, and constant technological innovation will drive long-term, sustainable growth in the semiconductor capital equipment industry. 29 Components of Our Results of Operations The following discussion sets forth certain components of our statements of operations as well as significant factors that impact those items.
Components of Our Results of Operations The following discussion sets forth certain components of our statements of operations as well as significant factors impacting those items. Sales We generate sales primarily from the design, manufacture, and sale of subsystems and components for semiconductor capital equipment.