The Development Bureau (DEVB) launched a three-month exercise on 2 April 2025 inviting the market to submit expression of interest (EOI) for three eco-tourism development proposals including those for Pak Nai and Tsim Bei Tsui. DEVB held briefing sessions for the EOI invitation on 14 April 2025. For details, please refer to the invitation for Pak Nai and Tsim Bei Tsui's EOI, reply form, slides for briefing session, technical considerations for proposed eco-tourism and press release.