Japan Space Technology Strategy and ¥1tn Space Strategy Fund

Mechanism

The Space Technology Strategy (宇宙技術戦略) is a Cabinet-level roadmap adopted by the Committee on National Space Policy — the apex inter- ministerial body chaired from the Cabinet Office. It identifies four priority technology areas:

1. Space transportation — next-generation reusable launchers, small/ medium-lift vehicles, and on-orbit servicing. 2. Satellites — Earth-observation, communications/PNT, and dual-use payloads, including constellation-grade serial production. 3. Space science and exploration — lunar/cislunar, Mars-class, and planetary defence. 4. Shared (cross-cutting) technologies — propulsion, power, robotics, on-orbit assembly and manufacturing.

These priority areas are the eligibility frame for the Space Strategy Fund (宇宙戦略基金) — a ¥1 trillion, ten-year financing vehicle established by the FY2023 supplementary budget and operationalised by the METI / MEXT / Cabinet Office Basic Policy of 26 April 2024. JAXA is designated as Fund administrator and disburses competitive grants to companies, universities and research institutes against ministry-set themes. First calls opened July 2024.

Headline industrial targets:

• Double Japan's space-industry market size from ≈¥4 trillion (2020s) to

¥8 trillion by the early 2030s.

• Reach ≈30 launches per year in the early 2030s (from ≤5/yr in 2023).
• Establish autonomous Japanese capacity across the full value chain

(launch, satellite, downstream services, exploration).

Downstream implications

• The Strategy is the parent authority for every subsequent JAXA Space

Strategy Fund grant programme — themes published by METI, MEXT and CAO trace their eligibility back to the four priority areas defined here.

• Structurally peer to the EU Space Act (COM(2025) 335) filed

2025-06-25 and to US sovereign-space industrial policy (NASA commercialisation programmes, DoD Space Development Agency tranches); closes the previous register gap of aerospace=0 / satellite=1.

• Reorients Japanese primes (MHI launch services, IHI Aerospace, NEC and

Mitsubishi Electric satellite buses) and a new tier of NewSpace entrants (Interstellar Technologies, Space One, ispace, Astroscale) toward state-supported scale, in direct response to US/EU/China space-industrial build-outs.

• Complementary to the Japan Economic Security Promotion Act (2022) and

the GX Promotion Act (2023) — space transportation and satellite-PNT are designated specified-critical infrastructure under the broader economic-security architecture.

• Sets the policy floor for Japan's contribution to Quad and trilateral

US-JP-AUS space-domain awareness and PNT-resilience initiatives.

Open questions

• Whether successor Cabinets maintain the ¥1tn envelope at the FY2025+

supplementary-budget tranches given fiscal-consolidation pressure.

• Allocation balance between launch (capital-intensive, slow IRR) and

satellite/downstream (faster commercial returns).

• Treatment of dual-use payloads under the JP Foreign Exchange and

Foreign Trade Act export-control regime — particularly for optical/SAR EO data and small-sat constellations.

• Coordination with the US BIS spacecraft-export-control reform package

(Oct-Nov 2024 filings) and any reciprocal JP licensing relaxation for AU/CA/UK partners.