Asia-Pacific stocks mostly fell Tuesday, Jan. 17. Hong Kong’s Hang Seng Index HK: HSI declined 0.8% to 21,577.64, while the Nikkei 225 Index JP: NIK of Japanese companies increased 1.2% to 26,138.68. China’s Shanghai Composite Index CN:SHCOMP weakened 0.1% to 3,224.24, and Singapore’s FTSE Straits Times Index SG:STI fell 0.1% to 3,280.51. The KOSPI Composite Index KR:180721 of South Korean stocks fell 0.9% to 2,379.39, while the S&P/ASX 200 Benchmark Index AU:XJO of Australian stocks was flat at 7,386.30. Among the Hang Seng Index constituents, aluminum company China Hongqiao Group HK:1378 saw the largest increase Tuesday, as shares rose 2.5%. Shares of optical instruments firm Sunny Optical Technology HK:2382 and sporting goods stores company Li Ning HK:2331 gained 2.4% and 1.4%, respectively. Shares of biotechnology company Wuxi Biologics (Cayman) HK:2269 saw the largest decline in Hong Kong, as shares weakened 6.1% on Tuesday. Shares of glass/glass products firm Xinyi Glass Holdings HK:868 and portable power tools company Techtronic Industries HK:669 fell 5.1% and 4.1%, respectively. Among Nikkei 225 Index constituents, industrial electrical equipment company Yaskawa Electric JP:6506 saw the largest increase Tuesday, as shares gained 4.1%. Shares of passive components firm Taiyo Yuden JP:6976 and passenger cars company Mazda Motor JP:7261 added 4.1% and 3.9%, respectively. Also in Japan, commercial banking company Chiba Bank JP:8331 saw the largest decline Tuesday, as shares weakened 3.4% Shares of commercial banking firms Concordia Financial Group JP:7186 Shizuoka Financial Group JP:5831 dropped 2.6% and 2.4%, respectively. Editor’s Note: This story was auto-generated by Automated Insights, an automation technology provider, using data from Dow Jones and FactSet. See our market data terms of use.