Opponents of the forthcoming competition bill say the proposed penalty is too steep.
The business-sector lawmakers say a penalty of up to 10 per cent of global turnover for companies violating the proposed bill - which aims to provide a level playing field for companies in Hong Kong - is too severe.
Firms can be charged 10 per cent of their annual turnover for every year they breach the law.
The government says it is a necessary deterrent, given the lack of criminal sanction in the draft bill, which has just entered its clause-by-clause scrutiny stage in the Legislative Council.
The bill tackles two major anti-competitive practices. The first is practices such as price-fixing and market-sharing. The second pinpoints abuse of market power.
Economic Synergy lawmaker Jeffrey Lam Kin-fung said the proposed penalty was unreasonable.