Kumagai Gumi
Wild retired from CSIRO in October 1985, but CSIRO continued to support pre-feasibility studies until October 1988. By September 1986 he had brought together an unincorporated joint venture of TNT, Elders IXL and Kumagai Gumi. In August 1987, after delay caused by uncertainties surrounding a potential takeover of their company, the BHP joined as the fourth, and subsequently foremost, partner. Wild became chairman of the Very Fast Train Joint Venture.