[Thailand] National Plan Targets 2030: 741 New Wastewater Treatment Plants + Clean Drinking Water for 75,032 Villages, USD 6.9 Billion Awaiting PPP Leverage

Overview

To deliver on United Nations Sustainable Development Goal 6 (SDG6), the Thai government has set an ambitious water-environment target list in its national medium- and long-term plan: by 2030, achieve clean drinking water for 75,032 villages, build 741 new wastewater treatment plants to control water pollution, add 27.299 billion m³ of reservoir storage capacity, expand irrigation area to 4.96 million hectares, and develop 10,000 agricultural water sources. By estimate, these projects alone represent an investment of about USD 6.9 billion, and Thailand clearly hopes to attract private-sector participation through models such as PPP, injecting a massive structural increment into the water and environmental protection market.

Background: Why Environmental Investment Is Accelerating

Thailand's economy is currently under pressure: the 2025 growth forecast has been revised down from 2.3–3.3% to 1.3–2.3%, compounded by external challenges such as the global trade slowdown, US tariff pressure and a stronger baht. Yet it is precisely in this economic headwind that Thailand is strategically placing greater weight on the environmental sector, for two reasons. First, the environmental industry has a classic countercyclical nature — infrastructure and pollution treatment investment is little affected by short-term cyclical fluctuations, and it creates jobs and stimulates domestic demand. Second, environmental improvement is a prerequisite for many economic plans — Thailand plans to bid for the Youth Olympic Games in 2030 and to meet the threshold conditions for joining the Organisation for Economic Co-operation and Development (OECD), and water quality and water-environment management levels directly bear on national image and accession qualifications.

From the current state of water pollution, Thailand's wastewater treatment facility gap remains prominent: the national wastewater treatment rate has long been low, and large volumes of domestic and industrial wastewater are discharged directly without meeting standards, subjecting the Chao Phraya River basin and coastal waters to eutrophication and ecological degradation pressure. The plan to build 741 new wastewater treatment plants is precisely a catch-up investment aimed at "insufficient treatment capacity and low coverage".

Core: The Investment Structure and Delivery Mechanism of 741 Plants + USD 6.9 Billion

In terms of investment structure, the USD 6.9 billion is not a single wastewater-sector budget but a comprehensive water security investment package covering drinking water, wastewater, reservoirs, irrigation and agricultural water sources. Among these, the 741 new wastewater treatment plants are the core vehicle for water pollution control, mainly sited in densely populated cities, industrial parks and along key river basins; the clean drinking water project for 75,032 villages directly addresses rural water supply shortfalls, involving a large number of small, decentralized, modular water supply and treatment facilities.

On the delivery mechanism, the Thai government clearly uses PPP as the main line to leverage private capital: first, adopting a project company model of "government funding + enterprise co-construction and operation" for large municipal wastewater treatment plant projects; second, attracting private capital to participate in plant and network construction through variants such as BT/BTL/BLT; and third, relying on BOI investment incentives (8-year corporate income tax exemption for environmental machinery) and the Eastern Economic Corridor (EEC) preferential overlays to lower private-sector participation costs. For Chinese enterprises, this means the opportunity in the Thai market lies not only in "bidding for construction contracts" but also in embedding deeply into the full project life cycle as investors, operators and equipment suppliers.

Significance: Implications for TIANYI TECH

The thousand-plant wastewater treatment plan provides TIANYI TECH with medium- and long-term, plannable market depth. First, scale dividend: the 741 plants span large municipal plants and small decentralized sites, and our complete equipment, membrane systems and water reuse solutions can connect at different tiers — large municipal plants focus on advanced treatment and reuse units, while village and town sites focus on standardized, modular integrated equipment. Second, PPP participation paths: the Thai government welcomes foreign investment in a PPP capacity, and we can explore joint bidding with local Thai water groups and overseas platforms of Chinese central SOEs, participating in plant-and-network integrated projects through an "equipment + technology + operations" combination. Third, supporting windows: the clean drinking water project for 75,032 villages requires a large number of small water purification and disinfection devices, a cost-effective entry point for standardized equipment exports that can be combined with the outbound logistics corridors of border provinces such as Yunnan and Guangxi to reduce delivery costs.

We plan to make Thailand our second main battlefield in Southeast Asia (after Vietnam): launching Thailand market deployment in 2026 — completing local agency and licensing reviews, connecting to the BOI/EEC preferential policy channels, and establishing standards mutual recognition with Thai design institutes — so that we occupy a first-mover position when the 741 wastewater treatment plant projects go to tender in batches.

Industry Perspective: Our Assessment

Thailand's strategy of "leveraging USD 6.9 billion in water security investment through PPP" is consistent with the infrastructure logic of Southeast Asia as a whole: the region's 2026 drainage and wastewater treatment market is expected to reach USD 21.84 billion (up 11% year-on-year), with PPP and water O&M outsourcing projects accounting for 43.6% of projects under construction and still rising. Compared with Vietnam's "central budget + external debt (ODA) + PPP" model, Thailand places greater emphasis on user pays and social capital efficiency, with a business model closer to market-oriented water utilities. For us, the Thai market is the touchstone for testing whether we can export operational and capital capabilities beyond equipment exports; completing our Thailand deployment will simultaneously give us a Southeast Asian foothold to leverage larger markets such as Indonesia and Malaysia.