DAVOS - Myanmar has already done a lot to reconnect with the international community and win investment, but the return to democracy is not complete and more political and economic reforms are needed, its trade minister said on Saturday. Myanmar has opened up to the outside world with astonishing speed since a civilian government took office last March after five decades of army rule, releasing political prisoners and launching democratic reforms. The prospect of the end of Western sanctions imposed for human rights abuses has prompted a surge of interest from investors who view the former Burma as one of Asia’s last “frontier markets.”