Container lines could shift business away from Hong Kong after its competition authority turned down a bid to exempt vessel discussion agreements (VDAs) from antitrust rules.

The decision on Wednesday cleared the way for vessel sharing agreements (VSAs) for the next five years, however.

Roberto Giannetta, secretary general of the Hong Kong Liner Shipping Association (HKLSA), which had made the bid for exemption, said he welcomed the decision to allow VSAs.