Unless otherwise specified, a visa is valid from the date of issue.
A visa expires if one of the following situations occurs:
(1) The visa has passed 24:00 (Beijing Time) on the date of entry, namely the ‘Enter Before’ date given on the visa page;
(2) The number of entries has been used up;
(3) The visa has been revoked or cancelled by the authorities of the Chinese government.
(4) Other circumstances governed by the Chinese laws