Important Notices 2022年4月1日 CHSSL's Services from April 1st, 2022 (Update May 31) News More CloseNovember 24, 2022The CHSSL will be closed on Dec. 14-16.NewsOctober 7, 2022Study Series No. 80 is availableNewsApril 1, 2022Study Series No. 79 is availableNewsMarch 14, 2022The Bulletin No. 42 is availableNewsFebruary 1, 2022Study Series No. 78 is availableNewsAugust 31, 2021Wireless LAN services (1284Wireless, eduroam) are availableSystemAugust 5, 2021Aug. 15–16 Online services will be temporarily unavailable