China Petroleum & Chemical Corporation (Sinopec, Chinese state-controlled) — world's largest oil refiner by capacity — has faced sustained scrutiny over the contested 2024 sustained Sinopec Russian crude oil sourcing post-2022 sanctions including the contested historic Yamal LNG 9.9% stake retained post-2022 sanctions affecting Hong Kong-listed institutional ESG investor concerns over Sinopec's Russian energy sourcing, plus the contested historic Iranian crude oil sourcing US OFAC compliance scrutiny.