What are the state-owned enterprises in Linxia Prefecture? thank you

I wonder if you are asking about the past or the present?

In the past, Gansu Optical Instrument Co., Ltd. was the largest state-owned enterprise in Linxia. Its head office was located in Dashi, Linxia, and there were also state printing plants and machine repair plants. There were almost no state-owned medium-sized enterprises in each county, only some small and micro enterprises, and I can't remember the specific names.

Now, the former glory of Ganguang Company no longer exists, and the enterprise is on the verge of bankruptcy (actually, it is no different from bankruptcy), and all other state-owned enterprises with names are gone now ~ ~ ~ ~ ~ ~ They are either restructured or dissolved ~