In order to enhance the investability of the index, Shenzhen Securities Information Co., Ltd. decided to revise the methodology of CNI Coal Index. 

A) Adjust the index name and short name to CNI Green Coal Index and Green Coal respectively .

B) Add the environmental score from CNI ESG Ratings to the selection criteria.

C) Revise the Buffer Rules in periodic review.

D) Calculate the adjustment factor based on the product of the environmental score from CNI ESG Ratings and the free-float market cap with the weight of individual constituent no more than 10%. 

The revision will be implemented on November 1, 2021. Please refer to the official website of CNI Index (www.cnindex.com.cn) for more details.

Shenzhen Securities Information Co., Ltd.

October 27, 2021