Lam Research Corporation: 10-K Risk Factor Changes

While we maintain business continuity plans, our manufacturing and R&D facilities are concentrated in a limited number of locations. These locations are subject to disruption for a variety of reasons, such as natural or man-made disasters, widespread outbreaks of illness, war, terrorist activities, political or governmental unrest or instability, disruptions of our information technology resources, utility interruptions, the effects of climate change, or other events beyond our control. Such disruptions may cause delays in developing or shipping our products, in engaging with customers on new product applications, or in supporting customers, which could result in the loss of business or customer trust, adversely affecting our business and operating results.

While we maintain business continuity plans, our manufacturing and R&D facilities are concentrated in a limited number of locations. These locations are subject to disruption for a variety of reasons, such as natural or man-made disasters, widespread outbreaks of illness, terrorist activities, political or governmental unrest or instability, disruptions of our information technology resources, utility interruptions, the effects of climate change, or other events beyond our control. Such disruptions may cause delays in developing or shipping our products, in engaging with customers on new product applications, or in supporting customers, which could result in the loss of business or customer trust, adversely affecting our business and operating results. For example, the COVID-19 pandemic has impacted and could further impact our manufacturing operations, supply chain, R&D and customer support due to production, sourcing, logistics and other challenges resulting from quarantines, “stay at home” orders, facility closures, workforce challenges, and travel and logistics restrictions in connection with the pandemic.

Our revenues and operating results may fluctuate significantly from quarter to quarter or year to year due to a number of factors, not all of which are in our control. We manage our expense levels based in part on our expectations of future revenues. Because our operating expenses are based in part on anticipated future revenues, and a certain amount of those expenses are relatively fixed, a change in the timing of recognition of revenue and/or the level of gross profit from a small number of transactions can unfavorably affect operating results in a particular quarter or year. Factors that may cause our financial results to fluctuate unpredictably include but are not limited to: •legal, tax, accounting, or regulatory changes (including but not limited to changes in import/export regulations and tariffs, such as regulations imposed by the U.S. government restricting exports to China) or changes in the interpretation or enforcement of existing requirements; •macroeconomic, industry, and market conditions, including those caused by the Russian invasion of Ukraine or bank failures, and geopolitical issues; •changes in average selling prices, customer mix, and product mix; •foreign currency exchange rate fluctuations; •economic conditions in the electronics and semiconductor industries in general and specifically the semiconductor equipment industry; •the size and timing of orders from customers; •changes in our deferred revenue balance, including as a result of factors such as volume purchase agreements, multi-year service contracts, back orders, and down payments toward purchases; •consolidation of the customer base, which may result in the investment decisions of one customer or market having a significant effect on demand for our products or services; •procurement shortages; •the failure of our suppliers or outsource providers to perform their obligations in a manner consistent with our expectations; •manufacturing difficulties; •customer cancellations or delays in shipments, installations, customer payments, and/or customer acceptances; •the extent that customers continue to purchase and use our products and services in their business; •our customers’ reuse of existing and installed products, to the extent that such reuse decreases their need to purchase new products or services; •our ability to develop, introduce, and market new, enhanced, and competitive products in a timely manner; •our competitors’ introduction of new products; •legal or technical challenges to our products and technologies; •transportation, communication, demand, information technology, or supply disruptions based on factors outside our control, such as strikes, acts of God, wars, terrorist activities, widespread outbreak of illness, natural or man-made disasters, or climate change; •management of supply chain risks; •rising inflation or interest rates; and •changes in our estimated effective tax rate. Lam Research Corporation 2023 10-K 15 Lam Research Corporation 2023 10-K 15 Lam Research Corporation 2023 10-K 15 Table of Contents Table of Contents

Our revenues and operating results may fluctuate significantly from quarter to quarter or year to year due to a number of factors, not all of which are in our control. We manage our expense levels based in part on our expectations of future revenues. Because our operating expenses are based in part on anticipated future revenues, and a certain amount of those expenses are relatively fixed, a change in the timing of recognition of revenue and/or the level of gross profit from a small number of transactions can unfavorably affect operating results in a particular quarter or year. Factors that may cause our financial results to fluctuate unpredictably include but are not limited to: •economic conditions in the electronics and semiconductor industries in general and specifically the semiconductor equipment industry; •the size and timing of orders from customers; •changes in our deferred revenue balance, including as a result of factors such as volume purchase agreements, multi-year service contracts, back orders, and down payments toward purchases; •consolidation of the customer base, which may result in the investment decisions of one customer or market having a significant effect on demand for our products or services; •procurement shortages; •the failure of our suppliers or outsource providers to perform their obligations in a manner consistent with our expectations; •manufacturing difficulties; •customer cancellations or delays in shipments, installations, customer payments, and/or customer acceptances; •the extent that customers continue to purchase and use our products and services in their business; •our customers’ reuse of existing and installed products, to the extent that such reuse decreases their need to purchase new products or services; •changes in average selling prices, customer mix, and product mix; •our ability to develop, introduce, and market new, enhanced, and competitive products in a timely manner; •our competitors’ introduction of new products; •legal or technical challenges to our products and technologies; •transportation, communication, demand, information technology, or supply disruptions based on factors outside our control, such as strikes, acts of God, wars, terrorist activities, widespread outbreak of illness, natural or man-made disasters, or climate change; •legal, tax, accounting, or regulatory changes (including but not limited to changes in import/export regulations and tariffs) or changes in the interpretation or enforcement of existing requirements; •changes in our estimated effective tax rate; and •foreign currency exchange rate fluctuations. For example, the COVID-19 pandemic has impacted and could further impact our ability to meet the demand for our products due to production, sourcing, logistics and other challenges resulting from quarantines, shelter in place or “stay at home” orders, facility closures, workforce challenges, and travel and logistics restrictions in connection with the pandemic.

China represents a large and fast-developing market for the semiconductor equipment industry and therefore is important to our business. Revenue in China, which includes global customers and domestic Chinese customers with manufacturing facilities in China, represented approximately 26%, 31%, and 35% of our total revenue for fiscal years 2023, 2022, and 2021, respectively. The U.S. and China have historically had a complex relationship that has included actions that have impacted trade between the two countries. Recently, these actions have included an expansion of export license requirements imposed by the U.S. government, which have limited the market for our products, adversely impacted our revenues, and increased our exposure to foreign competition, Lam Research Corporation 2023 10-K 20 Lam Research Corporation 2023 10-K 20 Lam Research Corporation 2023 10-K 20 Table of Contents Table of Contents and could potentially do so to an even greater extent in the future. Most recently, the U.S. government has enacted new rules aimed at restricting China’s ability to manufacture advanced semiconductors, which include restrictions on exports, reexports or transfers to, or shipping, transmitting, transferring, or facilitating such movement to, or performing services at, customer facilities in China engaged in certain technology end-uses, without appropriate authorizations obtained from U.S. authorities. In addition, the U.S. Department of Commerce has enacted new rules that have expanded export license requirements for U.S. companies to sell certain items to companies and other end-users in China that are designated as military end-users or have operations that could support military end uses; has added additional Chinese companies to its restricted entity list and unverified list under suspicion of military-civil fusion, support of Russia, or other factors associated with a broadening scope of national security concerns (including Semiconductor Manufacturing International Corporation, or SMIC, and related entities, and Yangtze Memory Technologies Co., Ltd., or YMTC, and related entities); and has expanded an existing rule (referred to as the foreign direct product rule) in a manner that could cause foreign-made wafers, chipsets, and certain related items produced with many of our products to be subject to U.S. licensing requirements if Huawei Technologies Co. Ltd (“Huawei”) or its affiliates are parties to a transaction involving the items. These rules have required and may require us to apply for and obtain additional export licenses to supply certain of our products to customers in China, such as SMIC, YMTC and ChangXin Memory Technologies, Inc., and there is no assurance that we will be issued licenses that we apply for on a timely basis or at all. In addition, our customers (including but not limited to Chinese customers) may require U.S. export licenses for the use of our products in order to manufacture products, including semiconductor wafers and integrated circuits, for those of their customers (i.e. Huawei and its affiliates) that are subject to the expanded foreign direct product rule, which may adversely impact the demand for our products. The U.S. Department of Commerce could in the future add additional Chinese companies to its restricted entity list or unverified list or take other actions that could expand licensing requirements or otherwise impact the market for our products and our revenue. The implementation, interpretation and impact on our business of these rules and other regulatory actions taken by the U.S. government is uncertain and evolving, and these rules, other regulatory actions or changes, and other actions taken by the governments of either the U.S. or China, or both, that have occurred and may occur in the future could materially and adversely affect our results of operations.

China represents a large and fast-developing market for the semiconductor equipment industry and therefore is important to our business. Revenue in China, which includes global customers and domestic Chinese customers with manufacturing facilities in China, represented approximately 31%, 35%, and 31% of our total revenue for fiscal years 2022, 2021, and 2020, respectively. The U.S. and China have historically had a complex relationship that has included actions that have impacted trade between the two countries. Recently, these actions have included an expansion of export license requirements imposed by the U.S. government, which have limited the market for our products, adversely impacted our revenues, and increased our exposure to foreign competition, and could potentially do so to an even greater extent in the future. For example, since the start of calendar year 2020, the U.S. Department of Commerce enacted a new rule that expanded export license requirements for U.S. companies to sell certain items to companies and other end-users in China that are designated as military end-users or have operations that could support military end-uses, added additional Chinese companies to its restricted entity list under suspicions of military-civil fusion, support of Russia, or other factors associated with a broadening scope of national security concerns (including Semiconductor Manufacturing International Lam Research Corporation 2022 10-K 20 Lam Research Corporation 2022 10-K 20 Lam Research Corporation 2022 10-K 20 Table of Contents Table of Contents Corporation, or SMIC, and related entities), and expanded an existing rule (referred to as the foreign direct product rule) in a manner that could cause foreign-made wafers, chipsets, and certain related items produced with many of our products to be subject to U.S. licensing requirements if Huawei Technologies Co. Ltd (“Huawei”) or its affiliates are parties to a transaction involving the items. These rules have required and may require us to apply for and obtain additional export licenses to supply certain of our products to specified customers in China, such as SMIC (where those products would not otherwise require an export license to China), and there is no assurance that we will be issued licenses that we apply for on a timely basis or at all. In addition, our customers (including but not limited to Chinese customers) may require U.S. export licenses for the use of our products in order to manufacture products, including semiconductor wafers and integrated circuits, for those of their customers (i.e. Huawei and its affiliates) that are subject to the expanded foreign direct product rule, which may adversely impact the demand for our products. The U.S. Department of Commerce could in the future add additional Chinese companies to its restricted entity list or take other actions that could expand licensing requirements or otherwise impact the market for our products and our revenue. The implementation, interpretation and impact on our business of these rules and other regulatory actions taken by the U.S. government is uncertain and evolving, and these rules, other regulatory actions or changes, and other actions taken by the governments of either the U.S. or China, or both, that have occurred and may occur in the future could materially and adversely affect our results of operations.

We are subject to income, transaction, and other taxes in the United States and various foreign jurisdictions, and significant judgment is required to determine worldwide tax liabilities. The amount of taxes we pay is subject to ongoing audits in various jurisdictions, and a material assessment by a governing tax authority could affect our profitability. As a global company, our effective tax rate is highly dependent upon the geographic composition of worldwide earnings and tax regulations governing each region. Changes in the split of earnings between countries with differing statutory tax rates, in the valuation allowance of deferred tax assets, in tax laws, in material audit assessments, or in expirations of agreements with tax authorities could adversely affect our effective tax rate. In particular, the carrying value of deferred tax assets, which are predominantly in the United States, is dependent upon our ability to generate future taxable income in the United States. On August 16, 2022, the Inflation Reduction Act (the “IRA”) was signed into law. In general, the provisions of the IRA will be effective beginning with our fiscal year 2024, with certain exceptions. The IRA includes a new 15% corporate minimum tax. We have evaluated the potential impacts of the IRA and do not expect it to have a material impact on our effective tax rate. However, we expect future guidance from the Treasury Department and will further analyze when the guidance is issued. Recommendations made by the Organization for Economic Co-operation and Development’s Base Erosion and Profit Shifting 2.0 (“BEPS 2.0”) project have the potential to lead to changes in the tax laws in numerous countries, including the implementation of a global minimum tax. Several countries around the world have enacted or proposed changes to their existing tax laws based on these recommendations. As each country in which we operate evaluates their alignment with the recommendations, the timing and ultimate impact of any such changes on our effective tax rate remain uncertain. When fully enacted, such changes could have a material impact on our effective tax rate. We will continue to monitor the progress of the BEPS 2.0 implementation. In addition, the U.S. has made several corporate income tax proposals, including changes in the taxation of non-U.S. income. If enacted, such changes could have a material impact on our effective tax rate.

We are subject to income, transaction, and other taxes in the United States and various foreign jurisdictions, and significant judgment is required to determine worldwide tax liabilities. The amount of taxes we pay is subject to ongoing audits in various jurisdictions, and a material assessment by a governing tax authority could affect our profitability. As a global company, our effective tax rate is highly dependent upon the geographic composition of worldwide earnings and tax regulations governing each region. Our effective tax rate could be adversely affected by changes in the split of earnings between countries with differing statutory tax rates, in the valuation allowance of deferred tax assets, in tax laws, by material audit assessments, or by changes in or expirations of agreements with tax authorities. These factors could affect our profitability. In particular, the carrying value of deferred tax assets, which are predominantly in the United States, is dependent on our ability to generate future taxable income in the United States. Lam Research Corporation 2022 10-K 21 Lam Research Corporation 2022 10-K 21 Lam Research Corporation 2022 10-K 21 Table of Contents Table of Contents On August 16, 2022, the Inflation Reduction Act (the “IRA”) was signed into law. In general, the provisions of the IRA will be effective beginning with our fiscal year 2024, with certain exceptions. The IRA includes a new 15% corporate minimum tax as well as a 1% excise tax on corporate stock repurchases applicable to repurchases after December 31, 2022. We are in the process of evaluating the potential impacts of the IRA. While we do not currently expect the IRA to have a material impact on our effective tax rate, our analysis is ongoing and incomplete, and it is possible that the IRA could have a material adverse effect on our tax liability. Recommendations made by the Organization for Economic Co-operation and Development’s Base Erosion and Profit Shifting project have the potential to lead to changes in the tax laws in numerous countries. In addition, President Joseph Biden has made several corporate income tax proposals, including a significant increase to the U.S. corporate income tax rate and changes in the taxation of non-U.S. income. If enacted, such changes could have a material impact on our effective tax rate.

The COVID-19 pandemic and efforts by national, state and local governments worldwide to control its spread resulted in measures aimed at containing the disease such as quarantines, travel bans, shutdowns, and shelter in place or “stay at home” orders, which collectively significantly restricted the movement of people and goods and the ability of businesses to operate. These restrictions and measures, incidents of confirmed or suspected infections within our workforce or those of our suppliers or other business partners, and our efforts to act in the best interests of our employees, customers, and suppliers, affected and in the future may affect our business and operations by, among other things, causing facility closures, production delays and capacity limitations; disrupting production by our supply chain; disrupting the transport of goods from our supply chain to us and from us to our customers; requiring modifications to our business processes; requiring the implementation of business continuity plans; requiring the development and qualification of alternative sources of supply; requiring the implementation of social distancing measures that impede manufacturing processes; disrupting business travel; disrupting our ability to staff our on-site manufacturing and research and development facilities; delaying capital expansion projects; and necessitating teleworking by portions of our workforce. These impacts caused and in the future may cause delays in product shipments and product development, increases in costs, and decreases in revenue, profitability and cash from operations, which caused and in the future may cause an adverse effect on our results of operations that may be material. The pandemic resulted at various times in significant disruption of global financial markets, increases in levels of unemployment, and economic uncertainty, which adversely impacted our business and may do so in the future, and may lead to significant negative impacts on customer spending, demand for our products, the ability of our customers to pay, our financial condition and the financial condition of our suppliers, and our access to external sources of financing to fund our operations and capital expenditures.

The COVID-19 pandemic and efforts by national, state and local governments worldwide to control its spread have resulted in widespread measures aimed at containing the disease such as quarantines, travel bans, shutdowns, and shelter in place or “stay at home” orders, which collectively have significantly restricted the movement of people and goods and the ability of businesses to operate. These restrictions and measures, incidents of confirmed or suspected infections within our workforce or those of our suppliers or other business partners, and our efforts to act in the best interests of our employees, customers, and suppliers, have affected and are affecting our business and operations by, among other things, causing facility closures, production delays and capacity limitations; disrupting production by our supply chain; disrupting the transport of goods from our supply chain to us and from us to our customers; requiring modifications to our business processes; requiring the implementation of business continuity plans; requiring the development and qualification of alternative sources of supply; requiring the implementation of social distancing measures that require changes to existing manufacturing processes; disrupting business travel; disrupting our ability to staff our on-site manufacturing and research and development facilities; delaying capital expansion projects; and necessitating teleworking by a large proportion of our workforce. These impacts have caused and are expected to continue to cause delays in product shipments and product development, increases in costs, and decreases in revenue, profitability and cash from operations, which have caused and are expected to cause an adverse effect on our results of operations that may be material. The potential duration and impact of the pandemic on the global economy and on our business are difficult to predict and cannot be estimated with any degree of certainty, but the pandemic has resulted in significant disruption of global financial markets, increases in levels of unemployment, and economic uncertainty, which has adversely impacted our business and may continue to do so, and may lead to significant negative Lam Research Corporation 2022 10-K 15 Lam Research Corporation 2022 10-K 15 Lam Research Corporation 2022 10-K 15 Table of Contents Table of Contents impacts on customer spending, demand for our products, the ability of our customers to pay, our financial condition and the financial condition of our suppliers, and our access to external sources of financing to fund our operations and capital expenditures.

We are subject to a variety of domestic and international governmental regulations related to the handling, discharge, sale, and disposal of toxic, volatile, or otherwise hazardous or potentially hazardous substances, and the regulatory environment is dynamic. Failure to comply with present or future environmental regulations (such as future regulations imposed on the use or sale of PFAS or PFAS-containing products) could result in fines being imposed on us, require us to undertake remediation activities, suspend production, and/or cease operations, or cause our customers to not accept our products. These regulations could require us to alter or discontinue our current operations in certain jurisdictions, acquire significant additional equipment, incur substantial other expenses to comply with environmental regulations, or take other actions. Compliance obligations, as well as any failure to comply with current or future regulations governing the use, handling, sale, transport, or disposal of hazardous or potentially hazardous substances (including, but not limited to, PFAS) could subject us to future costs and liabilities that may adversely affect our operating results, financial condition, and ability to operate our business.

We are subject to a variety of domestic and international governmental regulations related to the handling, discharge, and disposal of toxic, volatile, or otherwise hazardous chemicals. Failure to comply with present or future environmental regulations could result in fines being imposed on us, require us to undertake remediation activities, suspend production, and/or cease operations, or cause our customers to not accept our products. These regulations could require us to alter our current operations, acquire significant additional equipment, incur substantial other expenses to comply with environmental regulations, or take other actions. Any failure to comply with regulations governing the use, handling, sale, transport, or disposal of hazardous substances could subject us to future liabilities that may adversely affect our operating results, financial condition, and ability to operate our business.