Duterte reached Beijing on Tuesday with the aim of paving the way for what he calls a new commercial alliance.
China's demand from the Philippines, if any, is not clear yet in exchange for the fishing concession.
The government says Airbus EC 130 T2 helicopter was carrying an instructor and two trainee pilots when it disappeared.
The President is also scheduled to witness the operation preparations for Air Tractor AT-802 in Yahukimo.
President is taking a business delegation of more than 200 along with him, and expects to sign agreements with Beijing
Duterte vows not to surrender sovereignty or deviate from the July ruling regarding the South China Sea issue.
Philippines President Rodrigo Duterte says police can kill hundreds of civilians without criminal liability.
Prime Minister Narendra Modi launched a fresh attack on Pakistan at 2016 BRICS summit on Sunday.
However, Duterte said that there would be no "hard imposition" of it.
Xi is the first Chinese President to visit Bangladesh in 30 years.
'We cannot win that ... Even if we get angry, we'll just be putting on airs. We can't beat China'
Donald Trump says that it is a political attack.
CSP is a landmark pact that is expected to strengthen the bilateral relations between the two countries
Nine regional Sultans have the right to choose the next king.
Clashes erupt over Myanmar government's decision to pull down illegally built mosques.