East Water Resources Development (SET:EASTW)
East Water Resources Development and Management Public Company Limited (SET:EASTW) is a SET-listed Thai water-treatment-and-distribution company serving the Eastern Seaboard and EEC industrial cluster. Provides raw and treated water to Map Ta Phut Industrial Estate, Hemaraj WHA Industrial Estate, Amata City, and other major eastern-seaboard industrial tenants. Operates raw-water transmission pipelines from major Eastern reservoirs. Competes with TTW (SET:TTW) in Thai listed water-treatment tier.
Profile overview
East Water Resources Development and Management Public Company Limited (SET:EASTW) is a SET-listed Thai water-treatment-and-distribution company serving the Eastern Seaboard and EEC industrial cluster. Provides raw and treated water to Map Ta Phut Industrial Estate, Hemaraj WHA Industrial Estate, Amata City, and other major eastern-seaboard industrial tenants. Operates raw-water transmission pipelines from major Eastern reservoirs. Competes with TTW (SET:TTW) in Thai listed water-treatment tier.
Operations and portfolio
Raw water transmission
Eastern Seaboard pipelines
East Water operates raw-water transmission pipelines connecting Chachoengao, Nong Plalai, and Map Ta Phut reservoirs to industrial estates. Pipeline capacity exceeds 800 million cubic metres per year, serving the Eastern Seaboard's largest industrial water consumers.
Treated water supply
Industrial-grade treated water
East Water provides treated (potable and industrial-grade) water to Map Ta Phut Industrial Estate, the largest chemical-industrial cluster in Southeast Asia. Industrial water contracts are typically 5-15 year take-or-pay agreements, providing high revenue visibility.
EEC growth exposure
New industrial tenants
EEC development zone expansion under the Eastern Economic Corridor Act 2018 drives new industrial water demand. East Water has water-supply rights covering EEC-designated areas in Chonburi and Rayong, positioning it as the primary beneficiary of EEC industrial-park tenant growth.
Thai water treatment listed companies
Ticker
SET:EASTW
Primary market
Eastern Seaboard industries
Concession basis
Water-supply licences (industrial)
MWA (state)
Ticker
N/A
Primary market
Bangkok metro (residential)
Concession basis
Statutory monopoly
PWA (state)
Ticker
N/A
Primary market
All provinces (residential)
Concession basis
Statutory monopoly
| Company | Ticker | Primary market | Concession basis |
|---|---|---|---|
| East Water (EASTW) | SET:EASTW | Eastern Seaboard industries | Water-supply licences (industrial) |
| TTW | SET:TTW | Nakhon Pathom, Samut Sakhon | PWA PPP concession |
| MWA (state) | N/A | Bangkok metro (residential) | Statutory monopoly |
| PWA (state) | N/A | All provinces (residential) | Statutory monopoly |
Watchpoints 2025-2026
EEC water demand
Industrial tenant growth
New EEC industrial tenants in EV battery, semiconductor, and data-centre sectors all require significant water supply. East Water's ability to expand raw-water transmission capacity ahead of demand will determine its share of incremental EEC water contract revenue.
Drought risk
Eastern reservoir levels
The Eastern Seaboard's primary reservoirs (Nong Plalai, Dok Krai, Khlong Yai) are exposed to drought cycles. A severe dry season could reduce East Water's contractual supply capacity, triggering force-majeure provisions in industrial take-or-pay contracts.
Tariff renegotiation
Industrial water pricing
East Water's industrial water pricing is tied to long-term contracts. Renegotiation cycles in 2025-2027 for Map Ta Phut Industrial Estate contracts are the key revenue-per-unit-volume variable. Inflation pass-through clauses will determine whether margins erode or hold.
Related Market profiles
Peers, parents, partners, agencies, and other Water Treatment actors.
Competitor
TTW (Thai Tap Water Supply)
Listed Thai water utility; SET:TTW; concession-based water treatment for Nakhon Pathom, Samut Sakhon provinces.
Open Market profile →
Competitor
BEM Water
Listed BEM group's ancillary water-supply concession; transport-conglomerate with water diversification.
Open Market profile →
Competitor
East Water (EASTW)
Listed EEC, Eastern Seaboard raw water supplier; serves industrial estates, municipalities; direct EEC demand leverage.
Open Market profile →
Reports featuring this profile
Thailand Water Utilities Supply & Treatment Market Intelligence
EASTW subsidiary; multiple PWA-adjacent municipal concessions (Ratchaburi, Sattahip, others)
Open report →
Sits alongside 6 other Atlas profilesThai Water Utility: MWA, PWA, EAST WATER, and the Bangkok Water Distribution Backbone
Listed Thai water utility; SET:EASTW; serves Eastern Seaboard / EEC industrial cluster.
Open report →
Sits alongside 5 other Atlas profilesRelated Market profiles
competitor
TTW (Thai Tap Water Supply)
Listed Thai water utility; SET:TTW; concession-based water treatment for Nakhon Pathom, Samut Sakhon provinces.
competitor
BEM Water
Listed BEM group's ancillary water-supply concession; transport-conglomerate with water diversification.
competitor
East Water (EASTW)
Listed EEC, Eastern Seaboard raw water supplier; serves industrial estates, municipalities; direct EEC demand leverage.