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Sub-Decree 161 operates within Cambodia's two-tier investment-incentive architecture established by the 2021 Law on Investment and implemented through Sub-Decree No. 139 of 26 June 2023:
Tier 1 — QIP categorisation. Annex II of Sub-Decree 139 categorises all investment activities into three groups. Group 1 (priority-sector activities) qualifies for the maximum incentive package under the Annex IV matrix. Group 2 (medium-technology activities) receives a reduced package. Sub-Decree 161 moves RE electricity-generation from Group 2 to Group 1.
Tier 2 — QIP incentive entitlement (post-reclassification). Once a RE-generation project is registered as a Group 1 QIP with the CDC/CIB, it accesses:
Annex IV tier); a 50% CIT rate reduction applies for an additional 6 years thereafter.
machinery, equipment, and production inputs used in project construction and operation.
CDC/CIB, priority access to land-use and construction-permit fast-tracks, and SEZ overlay eligibility for projects sited in or adjacent to designated Special Economic Zones.
Regulatory context. Cambodia's electricity sector operates under the Electricity Authority of Cambodia (EAC) licensing regime. Post-2023, the Ministry of Mines and Energy has been transitioning from administratively-set feed-in-tariffs (FIT) to competitive Power Purchase Agreement (PPA) auctions. Sub-Decree 161's QIP incentive package is intended to improve project economics at the PPA-auction stage by reducing effective project cost, supporting Cambodia's 70% RE target under the Power Development Master Plan 2022-2040 (currently dominated by hydropower with rising solar penetration).
(approximately 1.1 GW as of mid-2025, led by NRG Solar Cambodia, Sunseap, and ACWA) can now access Group 1 incentives, reducing the effective cost of capital for greenfield solar. ADB's USD 52M and USD 82.5M RE reform programs (2024-2025) are the parallel concessional-debt layer complementing the QIP fiscal incentive.
projects in the Mekong basin and Cardamom Mountains are the incumbent beneficiaries; the Group 1 reclassification extends equivalent incentive access to the wind and solar developers (Blue Circle, ENGIE-Mitsui) competing in the EAC auction pipeline.
(investment-support-fund RE components), the Laos Law on Investment Promotion No. 62/NA (RE concession provisions), and the Thailand BOI Investment Promotion Strategy 2023-2027 (renewable energy priority-sector designations) — completing the Mekong-corridor RE investment-incentive alignment for the 2025-2027 window.
(EBA) duty-free access conditional on human-rights benchmarks. The RE elevation is structurally consistent with EU green-economy conditionality discussions under the post-2023 EBA review; failure to meet those benchmarks would not directly affect the QIP regime but would affect the downstream export revenues that make RE power-supply investment bankable.
via the CIB register? The parent Sub-Decree 139 English translation was uploaded in April 2025; an equivalent Sub-Decree 161 English PDF would confirm the precise scope of the Annex II amendment.
Group-2-QIP RE projects, or only to new applications filed after 27 August 2025? The Sub-Decree 139 amendment mechanics typically apply to new registration filings.
MME + EAC — remains unpublished. The Group 1 QIP tax incentive is necessary but not sufficient for RE bankability without transparent PPA pricing.