Required. According to the China National Petroleum Corporation's trademark information, the use of the China National Petroleum Corporation's trademark requires authorization from the trademark owner (the group company) in principle. Unless it is the normal use of the group company's constituent units, or has signed a trademark use contract with the group company, any unit or individual should declare the scope and purpose of use to China Petroleum Corporation before using the "China Petroleum" trademark. , and can only be used with formal authorization.