Escalating trade tensions, particularly between the United States and China, have led to increased tariffs and trade restrictions, including tariffs applicable to certain materials and components for products used in storage or solar energy projects and the renewable energy market more broadly, such as module supply and availability. More specifically, in March 2018, the United States imposed a 25% tariff on steel imports and a 10% tariff on aluminum imports pursuant to Section 232 of the Trade Expansion Act of 1962 and has imposed additional tariffs on steel and aluminum imports pursuant to Section 301 of the Trade Act of 1974. To the extent we source products that contain overseas supplies of steel and aluminum, these tariffs and any additional or increased tariffs could result in interruptions in the supply chain and negatively affect costs and our gross margins. Additionally, in January 2018, the United States adopted a tariff on imported solar modules and cells pursuant to Section 201 of the Trade Act of 1974. The tariff was initially set at 30%, with a gradual reduction over four years to 15%. In 2022, the United States extended the Section 201 solar tariffs for an additional four years, which declines to a rate of 14% in 2025. While this tariff does not apply directly to the components we import, it may indirectly affect us by affecting the financial viability of solar energy projects, which could in turn reduce demand for our products. Furthermore, in July 2018, the United States adopted a 10% tariff on a long list of products imported from China under Section 301 of the Trade Act of 1974, including, inverters and power optimizers, which became effective on September 24, 2018. In June 2019, the Office of the U.S. Trade Representative increased the rate of such tariffs from 10% to 25%. While these tariffs are not directly applicable to our products, they could negatively affect the solar energy projects in which our products are used, which could lead to decreased demand for our products. In 2024, the United States increased Section 301 tariffs on Chinese lithium-ion battery packs from 7.5% to 25%, which are scheduled to take effect in 2026. In 2025, the United States broadly imposed additional 10% tariffs on Chinese goods under the International Emergency Economic Powers Act of 1977.
In addition, the United States currently imposes antidumping and countervailing duties on certain imported crystalline silicon photovoltaic ("PV") cells and modules from China and Taiwan. Such antidumping and countervailing duties can change over time pursuant to annual reviews conducted by the U.S. Department of Commerce ("USDOC"), and an increase in duty rates could have an adverse impact on our operating results.
In February 2022, Auxin Solar Inc., a U.S. producer of crystalline silicon PV products, petitioned the USDOC to investigate alleged circumvention of antidumping and countervailing duties on crystalline silicon PV cell and module imports assembled and completed in Cambodia, Malaysia, Thailand, and Vietnam. In August 2023, USDOC issued a final determination that certain Chinese producers are circumventing antidumping and countervailing duties by shipping crystalline silicon PV cells and modules through Cambodia, Malaysia, Thailand, and Vietnam for minor processing. However, that two-year moratorium has since expired. In 2024, USDOC initiated a second solar antidumping and countervailing duties case involving these same four countries. In 2025, the United States also initiated an antidumping and countervailing duties case for Chinese anode material, which could affect battery prices. The United States has suspended until June 2024 collection of antidumping and countervailing duties on crystalline silicon PV cell and module imports from those four countries. The timing and progress of many of our customers' projects depend upon the supply of batteries, PV cells and modules. As a result, if the United States begins collecting antidumping and countervailing duties on such products, it could adversely affect our business, financial condition and results of operations.
Tariffs, and the possibility of additional or increased tariffs in the future, have created uncertainty in the industry, particularly in light of the recent change in U.S. Presidential administration. This has resulted in, and may continue to result in, some project delays. If the price of solar systems or energy storage systems in the United States increases, the use of these products could become less economically feasible and could reduce our gross margins or reduce the demand of such systems manufactured and sold, which in turn may decrease demand for our products. Additionally, existing or future tariffs may negatively affect key customers, suppliers, and manufacturing partners. Such outcomes could adversely affect the amount or timing of our revenues, results of operations or cash flows, and continuing uncertainty could cause sales volatility, price fluctuations or supply shortages, or cause our customers to advance or delay their purchase of our products. It is difficult to predict what further trade-related actions governments may take, which may include additional or increased tariffs and trade restrictions, and we may be unable to quickly and effectively react to such actions.
Some products that we import may also be affected by the Uyghur Forced Labor Prevention Act (the "UFLPA"), which was signed into law by former President Biden in 2021. According to U.S. Customs and Border Protection, "it establishes a rebuttable presumption that the importation of any goods, wares, articles, and merchandise mined, produced, or manufactured wholly or in part in the Xinjiang Uyghur Autonomous Region of the People's Republic of China, or produced by certain entities, is prohibited by Section 307 of the Tariff Act of 1930 and that such goods, wares, articles, and merchandise are not entitled to entry to the U.S. The presumption applies unless the Commissioner of U.S. Customs and Border Protection determines that the importer of record has complied with specified conditions and, by clear and convincing evidence, that the goods, wares, articles, or merchandise were not produced using forced labor." There continues to be uncertainty regarding how to achieve full compliance with the UFLPA, whether related to sufficient traceability of materials or other factors. This has created a significant compliance burden and caused supply chain constraints and project delays for our customers that import certain products (including solar panels and related components) from China. Although our own product delivery schedules have not been materially affected thus far, future developments in the enforcement of the UFLPA and related withhold release orders issued by the U.S. Customs and Border Protection may result in disruptions to our own supply chains and future sales, and therefore negatively impact our business, financial condition, and results of operations.