unseated from this title by the Anzac-class frigate project a few years later. Construction The Australian Submarine Corporation construction facility was established on previously undeveloped land on the bank of the Port River, at Osborne, South Australia. Work on the site began on 29 June 1987, and it was opened in November 1989. South Australia was selected as the site of the construction facility based on the proposed location of the facility and promises by the State Government to help minimise any problems caused by workers' unions. The state's bid was aided by careful promotion to both Kockums and IKL/HDW during early in the project, and problems with the other states' proposals: Tasmania and Western Australia lacked the necessary industrial base, New South Wales could not decide on the location of the construction facility, Victoria's proposed site was poorly sited, and building in Liberal-led Queensland would have been politically unwise for the project when Labor was in power both federally and in all other states. Each submarine was constructed in six sections, each consisting of several sub-sections. One of the main criteria of the project was that Australian industries contribute to at least 60% of the work; by the conclusion of the project 70% of the construction and 45% of the software preparation had been completed by Australian-owned companies. Work was sub-contracted out to 426 companies across twelve countries, plus numerous sub-sub-contractors. In many cases, components for the first submarine were constructed by companies outside Australia, while those for the following five boats were replicated by an Australian-owned partner or subsidiary. The project prompted major increases in quality control standards across Australian industries: in 1980, only 35 Australian companies possessed the appropriate quality control certifications for Defence projects, but by 1998 this had increased to over 1,500. Although the acquisition project organisers originally planned for the first submarine to be constructed overseas, the Cabinet decided as part of the project's approval that all six submarines would be built in Australia; the increases in construction time and cost from not building the lead ship in the winning designer's home shipyard was considered to be offset by the additional experience provided to Australian industries. Even so, two sections of the first submarine were constructed by Kockums' shipyard in Malmo, Sweden. By the end of 1990, Chicago Bridge & Iron and Wormald International had both sold their shares in ASC. The shares were