Five major Chinese companies including two of the country’s largest oil producers will delist from the New York Stock Exchange, the firms said in filings .

Sinopec and PetroChina — two of the world’s biggest energy firms — will apply for “voluntary delisting” of their American depositary shares, the companies said in separate statements.

The Aluminum Corporation of China, also known as Chalco, as well as China Life Insurance and a Shanghai-based Sinopec subsidiary, announced similar moves on Friday.