HK — Hong Kong

Hong Kong is a Special Administrative Region of China on the South China Sea coast, one of the world's most important financial centers with the third-largest stock exchange globally. It operates under a 'one country, two systems' framework with a high degree of autonomy. The Hong Kong Dollar (HKD) is pegged to the USD through a linked exchange rate system. For developers, the HK country code maps to zh-HK for Hong Kong Traditional Chinese and en-HK for English. The .hk domain and +852 calling code serve Hong Kong. Hong Kong Traditional Chinese (zh-HK) uses different character variants and conventions from zh-TW (Taiwanese Traditional Chinese), requiring separate locale treatment. Hong Kong's HKID card number has specific validation. The territory's role as a major fintech and financial hub means HKD handling is critical for Asian financial applications. Hong Kong's bilingual English-Chinese environment requires seamless language switching in applications.