The country has required exporters of natural resources to keep earnings in a special account at domestic banks since 2019.

Airlangga told a news conference the government is considering extending this requirement to exporters of manufactured goods.

"The government will review (the 2019 regulation), not just on sectors it applies to, but also the amount of foreign exchange ... and how long (the earnings) are parked domestically," he said.

He did not indicate a preference for the length of time, but cited examples of other countries, such as India and Thailand, which require exporters to keep earnings at home for between six months to a year.

"We will regulate so that the foreign exchange comes in and it can strengthen our foreign exchange reserves," Airlangga said.

Exports last year from Southeast Asia's largest economy in January-November, at $268.2 billion, already surpassed the country's highest record for annual shipments, as the global commodity supercycle fueled an export boom.

The central bank has said it would launch a new monetary operation instrument to make it more attractive for exporters to keep their foreign currency earnings with domestic banks.

(Reporting by Gayatri Suroyo, Ananda Teresia and Stefanno Sulaiman; Editing by Tom Hogue and Ed Davies)