An increasing number of companies in China's most polluted region of Hebei have gained green loans with emission permits as pledges, following the guideline launched by the province to strengthen financial support for environmentally friendly industries and projects.

All the major companies in the steel, cement, electricity generation and glass industries will have the emissions permits, which aim to control the total pollutants emitted, said Li Bao, deputy head of the province's environmental protection bureau.

The move encourages participants to perform better in environmental protection, with financial support, and it can help the industries restrict pollution as part of the national promotion on emission trading.