Written contracts required for patent pledges.
Equity investments with insurance capital limited to certain businesses.
China to promote gold trading to foreign investors.
M&A encouraged in six industries.
Tax filing requirements clarified for enterprise re-organisation.
Renminbi bond market opened to overseas investors.
Contracts not yet approved are still valid.
Shanghai issues rules providing permanent residency for skilled personnel.
Building of high-end housing restricted.
Export revenue allowed to be retained abroad.
