Pak PM Nawaz Sharif with Chinese President Xi Jinping ahead of the One Belt, One Road Summit in Beijing.
Pakistan has signed new deals with China on Saturday worth nearly $500 million at Beijing's international forum on its "Silk Road" trade and infrastructure initiative for Asia, Africa and Europe, the Pakistani government said.
The memorandums of understanding add to $57 billion already pledged for the China-Pakistan Economic Corridor (CPEC), a network of rail, road and energy infrastructure that is part of the wider Chinese project also known as the Belt and Road initiative, or One Belt, One Road.
India boycotted the summit in Beijing because the CPEC runs through Pakistan-occupied Kashmir.
The deals came as Pakistani Prime Minister Nawaz Sharif met Chinese President Xi Jinping ahead of the Beijing summit expected to be attended by leaders from at least 29 countries to promote Xi's vision of expanding trade links.
Proposed in 2013 by Xi, the project is broad on ambition but still short on specifics.
Pakistan has been a flagship country and one of the most enthusiastic supporters of the One Belt-One Road initiative, in part because many projects are for power plants to alleviate the country's decade-long energy-shortage crisis that sees frequent blackouts.
"China-Pakistan Economic Corridor is a core component of your visionary initiative of the 'One Belt-One Road'," Sharif told Xi when they met at the Great Hall of China on Saturday, according to the Associated Press of Pakistan.
Xi called for a swift completion of projects involving Gwadar Port and special economic and industrial parks along the corridor, state Xinhua news service reported.
In a separate meeting, Premier Li Keqiang told Sharif that China hopes Pakistan "will intensify its efforts in protecting the safety of Chinese personnel in the nation, and ensure the security of related projects," Xinhua added.
Wary of Islamist militants, Pakistan has set up a new army division to protect the economic corridor. Ten Pakistani labourers were gunned down on Saturday while working on link roads to connect outlying towns to the Belt and Road initiative.
China says that between 2014 and 2016, its businesses signed projects worth $304.9 billion in Belt and Road countries. Some of the projects could be in development for years.
Some countries are wary of the debt burden that the Chinese financing could create.
Pakistan, however, has expressed an optimistic view, with the government's chief economist telling Reuters this week that the repayments will peak at around $5 billion in 2022, but will be more than offset by transit fees charged on the new transport corridor.