VSL uses the ISO9001:2008 standard as a framework for establishing its quality management systems.

  • Lisboa Palace
    Construction of a large diaphragm wall for a new hotel and casino complex.
    Hong Kong - 2014 read more

    Lisboa Palace

  • Shatin to Central Link contract 1106
    Diaphragm wall and barrette construction for the extension of Diamond Hill Station.
    Hong Kong - 2014 read more

    Shatin to Central Link contract 1106

  • Wai Yip Street
    Construction of a diaphragm wall and associated works for a commercial building development.
    Hong Kong - 2014 read more

    Wai Yip Street

  • Tseung Kwan O to Lam Tin Tunnel
    Site investigation using horizontal directional coring (HDC) techniques and in-situ testing.
    Hong Kong - 2015 read more

    Tseung Kwan O to Lam Tin Tunnel


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At VSL we believe that quality goes beyond the text book definition. Quality for us is ‘building trust’. We want our clients, employees and end users to trust that VSL will…

  • understand their needs, and meet their expectations;
  • work with them to provide the best, most practical solutions;
  • deliver to realistic programmes and budgets;
  • provide durable products;
  • help them to avoid problems;
  • be honest and straightforward.

VSL uses the ISO9001:2008 standard as a framework for establishing and monitoring its quality management systems. We have committed to certifying all parts of the group’s activities and operations, including all management functions. Currently 91.27% of activities by turnover are certified (or 33 out of 37 entities).

To achieve quality we invest a huge amount of time and effort making sure we can, and do, deliver what we promise. As a result, our quality management systems ensure that we provide…

  • professional and experienced management, supervision and workforce;
  • straightforward operating procedures;
  • engineering expertise;
  • robust methods;
  • proven equipment;
  • high-specification components; and,
  • independent oversight, monitoring and checking.

Non-exhaustive list of relevant actions

  • Post-tensioning: VSL’s Engineers, Supervisors and Skilled Workers are being certified as competent at our VSL Academy in Thailand.
  • Technical Centres in Singapore and Switzerland provide expert engineering design and support capabilities. In addition there are local technical offices in many countries.
  • A dedicated methods team and the research and development team constantly review existing methods to determine best practice and work on identifying new methods.
  • VSL’s components and suppliers are approved as part of a comprehensive Quality Control system. This includes regular sampling, testing and audits.
  • Each country is audited at least once a year by the Regional QSE team.

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