I usually go to the National Market Research Center (reportway_com) to look for it. Looking for authority. It is worthwhile to spend some money. National Market Research Center is the website of Information Technology Research Institute of China Machinery Department. China Institute of Information Technology of the Ministry of Mechanical Engineering (Beijing) focuses on global industrial market intelligence monitoring, production and marketing data services, industrial market research and investigation, urban (regional) development planning, investment and financing and other decision-making consultation.
At present, we have offices in Beijing, Shanghai, Wuhan, Changsha, Sydney and new york. It has undertaken a number of national projects, large-scale global market research, regional/project investment value evaluation, regional industrial planning, development zone/high-tech zone/park planning and design, feasibility study and post-evaluation of major projects, investment and financing planning, etc. It is one of the earliest collective-owned enterprises engaged in consulting services in northern China. So it's more reliable to go to this website ~