The Shenzhen Stock Exchange on Friday added three new provisions and changed seven in the final version of the listing regulations for the growth enterprise board (GEB), which will become effective on July 1.

The three newly added provisions seek to strengthen the requirements on core technology disclosure, responsibilities of accounting firms and accountability of independent directors.

The modifications to the seven provisions in an earlier draft focus mainly on information disclosure, insider trading, the lock-up period for resigned senior executives and the investment of new assets.