THE Singapore Exchange (SGX) could make it easier for established global companies to seek a secondary listing on its bourse.

The market operator announced yesterday that it is seeking feedback on a proposal to create two main tiers of oversight for secondary-listed companies, based on each company's home market.

For companies with a primary listing or substantial exposure to one of 23 "developed" markets, the SGX will no longer impose additional continuing listing obligations. That list of developed markets will be based on classifications by index operators MSCI and FTSE.