8月1號，國際特赦組織發表聲明，中國研究員潘嘉偉表示當局應「解決剝削勞工權益的問題，並應尊重工人結社自由的權利」、「除非有證據證明所有參與抗議的人犯了國際公認的罪行，否則這些人應立刻無條件獲釋」。同一日朝頭早喺香港，職工盟、社民連同街工勞工組等多個團體總共大約30人從西區警署遊行到中聯辦，聲援佳士工潮。職工盟表示將向國際社會申訴以施壓，繼續支持大陸工人去抗爭同成立獨立工會。因為中聯辦拒收抗議信，示威者將信件同標語黐落中聯辦門牌。
In a statement issued by Amnesty International on August 1, Chinese researcher Pan Jiawei said that the authorities should "address the exploitation of workers' rights and respect workers' right to freedom of association" and that "unless there is evidence that all those involved in the protests have committed internationally recognized crimes, they should be released immediately and unconditionally." On the same day, about 30 people from various organisations, including the Hong Kong Confederation of Trade Unions, the League of Social Democrats and the Street Workers' Labour Group, marched from the Western Police Station to the Liaison Office of the Central People's Government in solidarity with the Jasic Workers' Movement. The HKCTU said it would appeal to the international community to put pressure on mainland workers to continue to support the struggle and the establishment of independent trade unions. Because the Liaison Office refused to accept the protest letter, the protesters glued the letter and slogans to the door number of the Liaison Office.