• N. Ohuchi, H. Hayano, N. Higashi, E. Kako, Y. Kondou, H. Nakai, S. Noguchi, T. Saeki, M. Satoh, M. Sawabe, T. Shidara, T. Shishido, A. Terashima, K. Tsuchiya, K. Watanabe, A. Yamamoto, Y. Yamamoto, K. Yokoya
  KEK, Ibaraki
• T.T. Arkan, S. Barbanotti, H. Carter, M.S. Champion, R.D. Kephart, J.S. Kerby, D.V. Mitchell, Y. Orlov, T.J. Peterson, M.C. Ross
  Fermilab, Batavia
• A. Bosotti, C. Pagani, R. Paparella, P. Pierini
  INFN/LASA, Segrate (MI)
• D. Kostin, L. Lilje, A. Matheisen, W.-D. Möller, H. Weise
  DESY, Hamburg

In an at­tempt at demon­strat­ing an av­er­age field gra­di­ent of 31.5 MV/m as per the de­sign ac­cel­er­at­ing gra­di­ent for ILC, a pro­gram called S1-Glob­al is in progress as an in­ter­na­tion­al re­search col­lab­o­ra­tion among KEK, INFN, FNAL, DESY and SLAC. The S1-Glob­al cry­omod­ule will con­tain eight su­per­con­duct­ing cav­i­ties from FNAL, DESY and KEK. The cry­omod­ule will be con­struct­ed by join­ing two half-size cry­omod­ules, each 6 m in length. The mod­ule con­tain­ing four cav­i­ties from FNAL and DESY has been con­struct­ed by INFN. The mod­ule for four KEK cav­i­ties is being mod­i­fied at pre­sent. The as­sem­bly of the cry­omod­ules is sched­uled from Jan­uary 2010, and the op­er­a­tion of the sys­tem is sched­uled from June 2010 at the KEK-STF. In this paper, the con­struc­tion of the S1-Glob­al cry­omod­ule will be pre­sent­ed.