Ho Chi Minh City is one of Yokohama’s official Partner Cities. The two cities cooperate in a range of areas, including investment and trade promotion, academic exchange, urban services, and international city networks. Through the Y-PORT program, Yokohama also supports technical cooperation and the sharing of expertise in areas such as urban services and water management. Yokohama has also participated in the Ho Chi Minh City Friendship Dialogue, sharing experiences in urban development and sustainability.

Ho Chi Minh City People's Committee and the Japan External Trade Organization (JETRO) sign a Memorandum of Understanding.
- Photo: Government News Portal
Yokohama promotes international cooperation through its network of sister and partner cities as well as relationships with international organizations and overseas institutions. Areas of cooperation include economic exchange, tourism promotion, environmental initiatives, urban development, culture, education, and technical cooperation. The city also promotes international technical cooperation and supports the development and deployment of sustainable urban solutions across Asia in collaboration with cities, international organizations, and the private sector.
Looking toward the future, Yokohama promotes investment and collaboration in a range of innovation-driven sectors, with priority areas including:
Mobility and Automotive Industries: Promoting investment and collaboration in mobility and automotive industries.
Life Sciences: Supporting investment and collaboration in life sciences.
Semiconductors and Advanced Technologies: Promoting investment and collaboration in semiconductors and advanced technologies.
Clean Technology: Supporting investment and collaboration in clean technology.
Research and Development and Innovation: Strengthening research and development, startup growth, and open innovation through collaboration among industry, academia, government, and private-sector partners.
Yokohama provides various support measures to encourage business investment and expansion. These include subsidies for the construction or acquisition of business facilities, land-use matching services, startup support programs, and assistance for foreign companies establishing operations in the city.