By Farah Master HONG KONG (Reuters) -Hong Kong may not reopen until early 2024 because of its strict COVID-19 policies, which could trigger an exodus of foreign firms and staff and jeopardise the city’s role as a financial hub, its European Chamber of Commerce said in a draft report. The limited effectiveness of locally developed vaccines has forced mainland China to maintain tight restrictions on travel, the chamber said in the draft, which was reviewed by Reuters but has not been made public. The European Chamber of Commerce declined to comment on the report. The most likely scenario for Hon…