1. The method for company investors to transfer shares in the share transfer system on behalf of the company is that after opening a securities account, shareholders can directly trade in the trading system like buying listed shares, but only tradable shares can be traded, and restricted shares cannot be traded.

2. Agency share transfer business refers to the special share transfer service provided by securities companies with the qualification of agency share transfer service for unlisted companies approved by China Securities Association and reported to China Securities Regulatory Commission for the record.

3. In the stock market, the third board market and the new third board market are the agency share transfer business. Agency share transfer business refers to the special share transfer service provided by securities companies with the qualification of agency share transfer service for non-listed companies through electronic transactions, which is approved by China Securities Industry Association and reported to China Securities Regulatory Commission for the record. Simply put, it is a securities company that provides share transfer services for non-listed companies. Therefore, from the basic characteristics, such stocks are not listed on the stock exchange, but traded through securities companies. In this business, the securities company that provides share transfer business is the sponsoring broker.