Ke Rui, Shandong Province is a famous petroleum equipment enterprise in Shandong Province. It belongs to private enterprises, not state-owned enterprises.

Shandong Ke Rui Holding Group Co., Ltd. was incorporated in Dongying Administration for Industry and Commerce on May 26th, 2006. The legal representative is Yang Xian, and the company's business scope includes oil technology, oil drilling and production technology, investment management of mining machinery technology, etc.