SunPower is based in San Jose, California but produces most of its solar products in Mexico and the Philippines. The exemption covers SunPower’s premium, high-efficiency interdigitated back contact (IBC) cells and modules, which the company argued stood apart from the cheap, commoditized imports that dominate the market and were the target of the tariffs. “With today’s decision that SunPower’s highly differentiated IBC cells and modules are excluded from tariffs, we are able to turn the page,” SunPower Chief Executive Tom Werner said in a statement. […]