Computer chipmaking equipment suppliers ASML (ASML:AMS) and Lam Research (LRCX:NASDAQ) remain hopeful that sales to China will ramp up later this year, despite US export controls on advanced microchip technology.

The world’s two largest economies remain at loggerheads over advanced technology, with the US doing everything it can to stay ahead in the tech race, including the placement of tough export controls on China to stop the country from getting its hands on the market’s most advanced microchips. There are also national security concerns in play.

Major regions across the world are trying to become more self-sufficient when it comes to making microchips because of the supply chain issues that emerged during, and directly following, the Covid pandemic.

Remarks by Dutch lithography giant ASML and the California-based Lam Research about the strong demand for less-advanced chips, like those used in electric vehicles, indicate that China may still remain a key customer for the sector this year.

The companies’ latest quarterly earnings beat analyst expectations, though Lam’s sales were lower than a year ago because of a downturn in the memory market. Both said they expect sales to Chinese companies to increase in the coming months despite the US imposing sweeping restrictions on China’s semiconductor sector in October, because Beijing has been using US chipmaking technology to modernise its military.

Lam is subject to US export restrictions and ASML will face new rules from the Dutch government on China sales later this year. But those rules so far have only affected equipment used in making the most advanced chips. Lam and ASML said Chinese customers are buying tools for building less advanced chips that go into products like electric vehicles, mobile phones and personal computers amid the country’s drive for more self-sufficient production.

Lam had previously estimated that restrictions into China would cost it between $2 billion and $2.5 billion in revenue in 2023, although the company now says it has received ‘clarification’ of the rules from the US government. The company now believes it could recoup ‘a few hundred million dollars’ worth of tool sales that it initially thought were banned, although few details were given.

Lam shares have rallied around 5% to $514.38 since its results announcement. ASML remains largely flat at €566.

ASML reported March 2023 quarter earnings per share of €4.96 and revenues of €6.75 billion, beating expectations of €4.16 and €6.27 billion respectively. Lam’s earnings per share and revenues for the three months were $6.99 on $3.87 billion, versus $6.52 and $3.81 billion forecast.

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