As a key part and parcel of sustainable development of ASEAN-China relations, cooperation in non-traditional security issues has become a new growth area for both sides. This book is divided into three parts. The first part takes stock of Public-Private Partnership (PPP) in 30 years of ASEAN-China public health cooperation, covering topics such as digital health and personnel training cooperation, global vaccine distribution and PPP in public health in Laos, Myanmar and Vietnam. The second part explores how to reconnect ASEAN and China, which includes sharing the experiences of member states on vaccine multilateralism and offering proposals for practicable and safer regional standards to institute green lanes, travel bubbles and COVID-19 travel passports to strengthen the regional economy, especially in mass tourism. The third part introduces ASEAN-China cooperation on Nature based solutions (NBS) to environmental issues, including Southeast Asia's vulnerability to climate change and its Low Carbon Pathway, and NBS for climate change adaptation in Vietnam's Mekong Delta.