Nvidia developed the H20 to compete with Huawei, a chipmaker based in China. The US bars companies from selling US technology to Huawei. That approach appears to have been successful at slowing Huawei’s progress in developing critical technology,

Nvidia stock was rising Tuesday with sales of its artificial-intelligence processors seemingly poised to surge in China. The chip maker’s shares were up 1.2% at $178.84 in early trading. The stock rose 1.

Demand in China has begun surging for a business that, in theory, shouldn't exist: the repair of advanced Nvidia artificial intelligence chipsets that the U.S. has banned the export of to its trade and tech rival.