Financial Secretary Paul Chan opened the Hong Kong Economic & Trade Office in Jakarta yesterday.
He said the office's establishment will boost co-operation between Hong Kong and Association of Southeast Asian Nations.
Mr Chan also delivered a keynote speech at a Belt & Road Initiative seminar and met financial officials and business leaders.
Noting the promising future for Hong Kong and Indonesia under the initiative, he said: "Given its fast growing economy, its strategic location in Southeast Asia, as well as its vast human and natural resources, Indonesia is a key player in the Belt & Road Initiative.
"As Asia's international financial capital, Hong Kong has the experience, expertise (and) international connections to serve as the fundraising, financial management and professional services hub for Belt & Road projects."
After the seminar he met Indonesia Investment Co-ordinating Board Chairman Thomas Trikasih Lembong and Bank Indonesia Deputy Governor Perry Warjiyo.
Mr Chan also attended a gala dinner to celebrate the Hong Kong Special Administrative Region’s 20th anniversary.
Reviewing Hong Kong-ASEAN relations over the past decade, he said bilateral trade has grown by 72%, making ASEAN the second largest trading partner of Hong Kong.
A bilateral free trade agreement to be signed before the end of the year will further facilitate goods, services and investment flow between Hong Kong and ASEAN, he added.