Editor's note: Gao Zhi (an alias), 34, has worked for Wal-Mart for 13 years and at the Changde branch for five years. He would not identify himself for fear of legal disputes with Wal-Mart as he signed an agreement for compensation with the company that says he will get payment on the condition he keep the agreement secret.

I signed the compensation contract on March 13 but soon regretted doing so. Now I'm working with our trade union to fight for our rights.

The regional human resources manager in Changsha gave me two choices: relocate to the provincial capital without a pay raise or leave the company with the compensation they set for us. There was no room for bargaining.