What about the Blasting and Blasting Research Institute of Beijing Mining and Metallurgy Research Institute (Beijing Beikuang Yibo Technology Co., Ltd.)?

Beijing Institute of Explosion and Blasting (Beijing Beikuang Yibo Technology Co., Ltd.) is a subsidiary company of central enterprises, so the employees employed are all kinds of "labor relations". There are both "regular employees" (who can transfer to Beijing hukou, file with the company, participate in job title evaluation, and participate in unit housing distribution), "hiring employees" (only paying wages and bonuses, with five insurances and one gold), and "labor-employment relationship" (only paying wages and bonuses). It depends on the form of signing the contract and what the seal is (some people have the formalities sent by the state to sign the contract at the personnel department of Beijing Institute of Mining and Technology and transfer the files. Some people also signed a contract with the personnel department of Beijing Institute of Mining and Technology, but there is a difference between turning files and not turning them. There are still some people who signed a contract with North Mine Yibo, so there is a big difference. The treatment is very different. Working together, the high annual income can reach 200- 1 10,000, and the low income is 20-30,000 yuan.