Is PetroChina Science and Technology Development Co., Ltd. Party A?

Yes Party A in the petroleum industry refers to oil companies, that is, departments responsible for exploration and investment and oil production plants, while Party B refers to drilling companies, cementing companies and logging companies responsible for development. Party B only needs to complete the engineering service according to Party A's design, regardless of whether it can pump oil or gas. Generally speaking, many oil fields recruit people in this way, but there is a special case, that is, Tarim Oilfield does not have its own unit, they only have the exploration and development headquarters, and other companies drill wells for them.