Hong Kong authorities have formally issued buy-back offer letters to homeowners at the fire-ravaged Wang Fuk Court in Tai Po, giving them until 31 August to decide whether to accept a government buy-back offer under a long-term resettlement plan.The letters were sent to all homeowners on Thursday, including those who had previously said they would not sell their flats, the South China Morning Post has learned.The government has earmarked HK$6.8 billion (US$870 million) to acquire flats damaged...