Editor’s Note: This is Part 1 of a 3-part PortCalls series on the Pax Silica initiative and Luzon Economic Corridor.
The Luzon Economic Corridor (LEC) and the Pax Silica Initiative are advancing on parallel, overlapping tracks, together promising tens of billions of dollars in investment and hundreds of thousands of jobs. Both rely heavily on the Clark Freeport Zone in Central Luzon. And both will succeed or stall depending on something far less glamorous than groundbreaking ceremonies: whether the Bureau of Customs (BOC), the Department of Transportation (DOTr), and the freeport and economic zone authorities along the corridor can write the operational rules fast enough to keep pace with the physical infrastructure.
This report examines where the two initiatives stand ahead of the inaugural LEC Investment Forum on September 10-11, where they intersect, what customs and transport regulatory architecture is still missing, and what is at stake for logistics stakeholders if the government gets implementation right — or wrong.
Where Pax Silica and the LEC Meet
The LEC is the broader canvas: a partnership among the Philippines, the United States, and Japan — since expanded to include Australia, Canada, Denmark, France, Italy, South Korea, Sweden, and the United Kingdom — that aims to knit together Subic Bay, Clark, Metro Manila, and Batangas into a single, internationally competitive economic corridor. Launched in April 2024 as the first Indo-Pacific corridor under the U.S.-led Partnership for Global Infrastructure and Investment, it covers transport and logistics, energy, digital connectivity, and advanced manufacturing across a footprint that officials say accounts for roughly half of Philippine gross domestic product (GDP).
Pax Silica is narrower but more geopolitically charged: a U.S.-led, 23-country economic-security initiative to build allied, China-independent supply chains for semiconductors, artificial intelligence (AI) infrastructure, and critical minerals. The Philippines formally joined in April 2026, offering roughly 1,620 hectares (about 4,000 acres) inside New Clark City, Tarlac, as an “Economic Security Zone” — the initiative’s first designated “Golden Node” anywhere in the network.
The two projects interconnect at Clark Freeport Zone, literally and institutionally. Pax Silica’s hub sits inside New Clark City, one of the LEC’s priority nodes, and the government has framed it as riding on the LEC’s coattails: the same rail, port, and airport infrastructure being built to decongest Manila and connect Subic-Clark-Manila-Batangas is what must move silicon wafers, server racks, and critical-mineral feedstock in and out of the proposed AI hub. Officials have said the zone’s viability depends on LEC connectivity — power, water, fiber, and freight movement — being in place. In short, Pax Silica is a tenant; the LEC is the building.
The State of Play: Pledges, Projects, and What’s Actually Moving
LEC partnership and pledges. The LEC has grown from three governments to eleven, plus a widening bench of private investors. Partner governments have collectively pledged roughly $7 billion toward private-sector mobilization, on top of technical assistance — the United Kingdom alone has committed a $6.8-billion export-finance facility, while Australia, Canada, South Korea, and Sweden have added smaller technical-assistance packages. Philippine Ambassador to the U.S. Jose Manuel Romualdez projected in 2024 that the corridor could eventually draw up to $100 billion in investment over five to ten years; that figure remains aspirational rather than committed.
Some of that foundation is already in place. The Philippine Economic Zone Authority (PEZA) said existing value chains in the Clark Freeport Zone can support future LEC and Pax Silica investments: as of December 2025, five PEZA-registered ecozones in the Clark area host 24 locator companies, with cumulative investments of more than ₱62 billion and employment of over 29,000 Filipinos.
That base has since drawn fresh, LEC-linked private investment: Collins Aerospace‘s new 7,846-square-meter facility in Santo Tomas, Batangas; an I Squared Capital-Bases Conversion and Development Authority (BCDA) memorandum of understanding on a proposed 45-mile Subic-to-Clark fuel pipeline; and the Agila Subic Shipyard rehabilitation involving Cerberus Capital Management and HD Hyundai. UPS and FedEx are both expanding cargo operations at Clark International Airport — FedEx broke ground on its expanded facility last May, and UPS’s new Clark hub is due to open within the second half of 2026.
Pax Silica. The most significant recent development is reported progress on an anchor tenant: Foxconn has been named as the lead investor under a framework agreement now being finalized between the U.S. and Philippine governments, with at least 20 companies said to have expressed interest in the zone. BCDA has set an initial investment target of $10 billion — a more concrete figure than the $40-70 billion, 130,000-190,000-job long-run projections officials have separately floated for the zone’s full build-out. Investors will also be able to lease New Clark land for up to 99 years under Republic Act No. 12252, the amended Investors’ Lease Act signed in September 2025. The Department of Trade and Industry has since clarified that Pax Silica activity will not be confined to New Clark City, with other Philippine ecozones being considered for chip-design and advanced-manufacturing work.
The initiative has also drawn organized opposition. Environmental and indigenous-rights groups, including Kalikasan, have raised concerns about the potential displacement of an estimated 20,000 Aeta residents and farmers, and about the water and energy footprint of AI data centers and semiconductor fabrication — officials say the zone could require about 3 gigawatts of power. BCDA has pushed back on several of these points: it says the New Clark site in Capas, Tarlac accounts for only 4.6% of the 35,300-hectare Clark Freeport, that water needs will be met through surface-water harvesting, recycling, and possibly desalination rather than the community supply, and that dedicated, largely off-grid power plants — not the existing grid — will serve the zone. The Department of Energy said in July it is separately reviewing the project’s power requirements alongside renewable-energy projects planned for the area. Whether that reassurance holds up once the framework agreement and site plans are finalized remains to be seen.
The SCMB Railway. The Subic-Clark-Manila-Batangas Railway is the corridor’s connective spine and the project most directly relevant to customs and transport regulation. The roughly 250-kilometer, $3.2-billion freight line is designed to link Subic Port, Clark International Airport, the Port of Manila, and the Port of Batangas, decongesting Manila’s ports and giving exporters a land-bridge alternative to trucking. It builds on — and is meant to rescue — the stalled 71-kilometer Subic-Clark Railway Project, whose original Chinese financing fell through in 2017. The U.S. Trade and Development Agency (USTDA) signed a technical-assistance agreement in June 2025 to fund the feasibility study and project design; Transport Undersecretary Timothy John Batan said in June that preparatory studies will be completed next year. A widely reported (though not USTDA-confirmed) planning schedule has construction of the Subic-Clark segment beginning in 2027-2028 and the Clark-Manila-Batangas segment in 2028-2029 — meaning the railway will not move freight for several more years even on an optimistic timeline.
Clark International Airport. BCDA awarded the detailed engineering design contract for a second runway at Clark International Airport (CRK) in April 2026, with construction expected to start after design completion in mid-2027 and full operation targeted for the fourth quarter of 2029 — roughly the same multi-year horizon as the railway.
The September forum. The U.S., Japan, and the Philippines will co-host the inaugural LEC Investment Forum on September 10-11 in Manila, sponsored by USTDA, convening roughly 600 investors, industry leaders, and officials for sessions on advanced manufacturing, digital connectivity, energy, transport and logistics, and private capital. The agenda includes site visits to Subic Bay, Clark, and Batangas. It is explicitly billed as the venue where the corridor’s project pipeline — rail, ports, airports, energy, and Pax Silica among them — gets pitched directly to financiers, marking the shift from government pledges toward private capital commitments.
Watch out for Part 2 – Pax Silica and the Luzon Economic Corridor: The Regulatory Gaps
