Securities listed on the Shanghai Stock Exchange use a 6-digit compilation method in accordance with the Shanghai Stock Exchange's "Securities Coding Implementation Plan". The first 3 digits are to distinguish the types of securities. The details are listed in the following table: 001× ×× Treasury bond spot; 110 × × × 120 × × × corporate bonds; 129 × × × 100 × × × convertible bonds; 201 × × Fund; 600×××A shares; 700××× allotment; 710××× transfer allotment; 701××× transfer allotment and then allotment; 711××× transfer allotment and then allotment; 720××× bonus; 730× Subscription for ×× new shares; 735 ××× new fund subscription; 737 ××× new share placement; 900 ××× B shares. \x0d\ The trading code of A stock in Shanghai Stock Exchange starts with 600, 601 or 603. For example: Yunsheng Industrial: the stock code is 600767. Air China: The stock code is 601111. Yingliu Shares: The stock code is 603308. The trading code of B shares starts with 900, for example: Instrument B shares: the code is 900901. \x0d\　The code for new stock subscription on the Shanghai Stock Exchange starts with 730. For example: CITIC Securities: the subscription code is 730030. The code for subscription of new shares in the Shenzhen Stock Exchange is the same as the stock trading code in the Shenzhen Stock Exchange. For example, the market capitalization allotment code of CITIC Securities in the Shenzhen Stock Exchange is 003030. \x0d\　The allotment code starts with 700 in the Shanghai stock market and 080 in the Shenzhen stock market. For example: Yunsheng Industrial's allotment code is 700767. The allotment code of Shenzhen Grassland Xingfa is 080780. \x0d\ In the past, the securities code of the Shenzhen Stock Exchange was four digits, but it has been raised to six digits not long ago. The specific changes are as follows: The securities code of the Shenzhen Securities Market has been unified from the original 4 digits to 6 digits. 1. New securities code coding rules: The upgraded securities code adopts 6-digit coding. The coding rules are defined as follows: Sequential coding area: the 3rd to 6th digits of the 6-digit code, and the value range is 0001-9999. Securities type identification area: the leftmost two digits of the 6-digit code, of which the first digit identifies the security category and the second digit identifies the derivative securities under this category. 1st 2nd 3rd to 6th digit definition 0 0 xxxx A-share securities 3 xxxx A-share A2 warrants 7 xxxx A-share additional issuance 8 xxxx A-share A1 warrants 9 xxxx A-share transfer 1 0 xxxx Treasury bond spot 1 xxxx Bond 2 xxxx Convertible bonds 3 xxxx Treasury bond repurchase 1 7 xxxx Original investment funds 8 xxxx Securities investment funds 2 0 xxxx B-share securities 7 xxxx B-share additional issuance 8 xxxx B-equity certificates 3 0 xxxx GEM securities 7 GEM Warrants 3 9 xxxx Comprehensive Index/Component Index 2. Conversion of old and new securities codes. The method for upgrading A-share securities codes this time is to add "00" before the original code. However, there are two A-share stock upgrading methods that are special, namely " 0696 ST Lianyi" and "0896 Yuneng Holdings", after the upgrade, the stock codes are "001696" and "001896" respectively. Temporary codes and special symbols in stock codes. Temporary codes for new shares: new share issuance subscription code is 730***, new share subscription payment code is 740***, new share allotment code is 741***; new share allotment code is 737** *, the allotment number for new share allotment (also known as "new share value number") is 747***; the subscription code for convertible bond issuance is 733***; \x0d\ The code for Shenzhen A stock trading starts with 000, such as :Shunxin Agriculture: The stock code is 000860. The trading code of B shares starts with 200, for example: Shenzhen Zhongguan B shares, the code is 200018. \x0d\　The small and medium-sized board stock code starts with 002, for example: the stock code of Donghua Hechuang is 002065.

\x0d\　The GEM stock code starts with 300, for example: the Pathfinder stock code is: 300005