The sisterhood agreement was signed in Bandung City to promote cultural, trade and tourism ties between the two emerging cities in the BIMP-EAGA region.
This move comes after Chinese President Xi Jinping met Nobel laureate Aung San Suu Kyi in Beijing earlier this week following China's Belt and Road Forum.
The Chinese government pledged a total of USD 24 billion soft loan assistance to the Philippines to fast-track the construction of infrastructure projects that will boost the economy.
Duterte also appealed to the highest court to control the number of TRO issuances as some of them could hamper the speedy implementation of government projects.
Last year in July, the 83-year-old emperor expressed his desire to retire due to his age and declining health that were making it hard for him to fulfill his official duties.