WASHINGTON D.C. — The Philippines, Japan and the United States have agreed to open string of coordinated investments across Luzon to “accelerate… high-impact infrastructure projects” in the southeast Asian country, the White House said on Wednesday.

The Luzon corridor — which will be part of the United States’ Partnership for Global Infrastructure and Investment (PGI) — will connect Subic Bay, Clark, Manila, and Batangas, an official from the White House told reporters in a teleconference.

The development of the Luzon corridor will include investments in ports, rail, clean energy, semiconductors, supply chains, and other forms of connectivity in the Philippines, the official said.

“We will be holding events and setting up a steering committee to accelerate the work on this Luzon corridor,” reporters were told.

The Development Finance Corporation — the United States’ financing arm for developing nations — “will be standing up an office in the Philippines to help to steer this work,” the White House said.

Officials did not disclose the expected amount of the PGI Luzon Corridor project, saying the the leaders of the Philippines, Japan and the United States are expected to announce details the program after the trilateral summit.

Philippine Ambassador to the United States Jose Manuel Romualdez earlier said that Tokyo and Washington are expected to pour in at least $100-billion worth of investments in Manila in the next 5 to 10 years.

The move to help the Philippines become more economically sustainable as the three countries formed a trilateral partnership in the face of China’s growing aggression in the region.