Sir4Short. You are indeed very short of the knowledge of labour rules in Hong Kong. It is unlawful to strike during working hours without the approval of the company involved. You may however, strike during off duty periods. As you will appreciate, an all out strike is no go in Hong Kong. The only recourse is a work to rule, or a WOE campaign (withdrawal of effort) which has been tried before. Unfortunately, neither of them have much teeth.