Li arrived in Indonesia's capital, Jakarta, on Saturday for a three-day visit to Southeast Asia's largest economy. It was the first stop of his first overseas visit this year.
Indonesia and China are member states of the Group 20 major developing countries and emerging economies and of BRICS.
Li brought 60 Chinese prominent businesspeople for his address to the Indonesia-China Business Reception on Sunday evening.
He emphasised in his remarks that China's economy has achieved rapid growth this year despite increasing external challenges.
"The current international situation is a stalemate," Li said at the event which was also attended by Subianto, "Unilateralism and protectionism are on the rise, bullying behaviour is increasing."
He called on all countries to seek common ground while resolving differences through dialogue and peaceful coexistence.
Subianto expressed gratitude to the Chinese government and its companies "that have participated in our economy, created jobs, transferred technology and built trust among all businesses, especially in our homeland".
He also invited Chinese businesspeople to invest more in Indonesia. Two-way trade exceeded $US147.8 billion ($A227.5 billion) last year, growing by 6.1 per cent.
Li said for nine consecutive years, China has been Indonesia's largest trading partner, and its Belt and Road co-operation program has seen substantive progress, including nickel smelting plants and Whoosh, the commercial service of Southeast Asia's first high-speed railway which has been operating since October 2023, carrying nearly 10 million passengers.