When does Ningxia Sinopec Yi Jie Refueling Preferential Activity expire?

March 31st. According to the inquiry of Sidi Siwei Auto Market, the Yi Jie Refueling Promotion of Ningxia Sinopec was held from January 1st to March 31st, 223, so it ended on March 31st. Ningxia Hui Autonomous Region, referred to as "Ning", is an autonomous region of the People's Republic of China, with Yinchuan as its capital; Located in the middle and upper reaches of the Yellow River in the northwest of the People's Republic of China.