Hong Kong’s competition watchdog has revised its tender clauses to require bidders make a statutory declaration they have not engaged in collusion on a project, as part of a wider move to criminalise bid-rigging following the city’s deadliest fire in decades.Senior Counsel Jat Sew-tong, chairman of the Competition Commission, also said on Thursday the body was considering proposing to raise the maximum penalty for the proposed criminal offence from seven to 10 years.Tendering practices came...