The 50th 1857 working group meetings will be held from June 2nd-3rd, 2023, in Four Points by Sheraton Changsha, Meixi Lake, Changsha, Hunan, China. The meeting schedule is as below, using UTC/GMT… Read more →

The 47th 1857 working group meetings will be held from August 23rd to 26th, 2022, online. The meeting schedule is as below,  using UTC/GMT +8.00, Beijing Time： Meeting Date/Time Convener Meeting Room P1857 Rev subgroup meeting Aug…. Read more →