The information collected by the 
JICOSH 
,
the former international center of JISHA, is available here, though it has not been updated:
The 79th National Industrial Safety and Health Convention and the Green Cross Exhibition in 2020 in Sapporo have been cancelled.We regret to inform that JISHA has made a hard decision that we have cancelled the National Industrial Safety and Health Convention in Sapporo, Hokkaido, which was scheduled to be held from October 7th to 9th, 2020, due to COVID-19 pandemic.
7 Oct. 2020 （Wed）- 9 Oct. 2020 （Fri） Cancelled
Sapporo, Hokkaido
全ての働く人々に安全・健康を 〜Safe Work , Safe Life〜
中央労働災害防止協会
〒108-0014 東京都港区芝5-35-2 安全衛生総合会館
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