1. Enterprise scale: Dongying Shenchi is a large oil refining enterprise with an annual output of 20 million tons of crude oil; Haike, on the other hand, is a medium-sized oil refining enterprise with an annual output of about 5 million tons of crude oil.
2. Technical level: Dongying Shenchi adopts advanced refining technology at home and abroad, and has a number of patented technologies independently developed, which can produce high-quality oil products; Haike, on the other hand, mainly adopts foreign refining technology, which is relatively mature, but there is still a gap compared with Dongying Shenchi.