China has to develop its own standards for high performance computers (HPC), which are critical to the nation's security, because overseas companies won't share, says head of the new committee that will unify standards.

"Certain core technologies are monopolized by overseas companies which refuse to share their standards on interface technology, which could undermine China's national security," said Li Jun, director of the HPC standard working committee at its launch on Wednesday.

High performance computers, which typically cost more than 100,000 yuan (13,158 U.S. dollars) are widely used in national defence, information security, petroleum exploration, weather forecasting, biomedicine, scientific computing and other fields.

"Currently, inconsistent standards prolong the assembly process of HPCs and the popularization of related technology," said Li.

The committee is expected to lay out a set of standards covering major domestic computer manufacturers producing chips, operating system, server and other products.

"Cooperation between manufacturers of upstream industries and their downstream counterparts has also been difficult," Li said.

Developing HPC technology is one of the country's priorities for the information industry.