Australian Iron & Steel was acquired in 1935, when Howard Smith also became a substantial shareholder; that holding was later sold. Shipping-related interests included the BHP Petroleum companies, the 1989 half-owned Shell venture Australian LNG Ship Operating, Associated Stevedores acquired in 1993, and International Marine Transport Lines, renamed BHP International Marine Transport in June 1990. Port Waratah Stevedoring was formed in 1923, became wholly owned in 1960 and was renamed BHP Stevedoring in late 1994 or 1995. BHP Transport Ship Management Services was formed in 1997. Capricornia Pacific and County Shipping were Hong Kong subsidiaries; the group also held Groote Eylandt Mining and acquired Utah International, including Utah Marine.
Other interests included Blue Ocean Bulk Shipping with Kawasaki Steel, Hunter Towage, Koppers Australia and Koppers Shipping, Merchants & Miners Transport, North West Shelf Shipping, Port Kembla Stevedoring & Agency and Tugs Pty. The Koppers Australia holding was sold in 1997, although Koppers Shipping remained listed under BHP Transport. North West Shelf ships, operated through Australian LNG, used “Northwest” followed by an “S” name; the main fleet used “Iron”.
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