Specific countries mainly refer to China, North Korea, South Korea, Japan and other East Asian countries, including Russia, the United States, Australia, the Philippines, Indonesia, Vietnam, Brunei, Malaysia, Singapore and other Southeast Asian countries.

In a narrow sense, it refers to the western Pacific region, which mainly includes China in East Asia (including Hong Kong, Macao and Taiwan), Japan, Russian Far East and ASEAN countries in Southeast Asia, and sometimes extends to Australia and New Zealand in Oceania.

Broadly speaking, the Asia-Pacific region includes the whole Pacific Rim region. Countries and regions on the east and west sides of the Pacific Ocean include Canada, the United States, Mexico, Peru, Chile and other countries in North and South America, the Russian Far East on the west coast of the Pacific Ocean, Japan, South Korea, Chinese mainland, Taiwan Province Province of China, Hong Kong, China, ASEAN countries and Australia and New Zealand in Oceania.