CH. Karnchang
CH. Karnchang (SET: CK) is the highest-ROE and most disciplined operator in the Thai listed civil-contractor top tier. FY2024 consolidated revenue approximately THB 35B, net profit materially above peers. Franchise spans MRT Orange Line west section, dam, hydropower projects (Xayaburi 1,285 MW in Laos), airport civil works, expressway, motorway construction. Strategic differentiator is the parent Ch. Karnchang Group's recurring-revenue portfolio β CKP (listed power, Xayaburi, solar), TTW (listed water-supply concession), BEM (listed Bangkok expressway, MRT Blue, Purple Line operator) β which cushions the lumpy EPC cycle with stable utility-style cash flow.
Snapshot
Headline numbers a buyer checks first.
FY2024 revenue
~THB 35B
FY2024
Franchise
MRT, dam, hydropower
FY2024
Ticker
SET: CK
Listed 1995
Group portfolio
CKP, TTW, BEM
Listed affiliates
What this company actually does
CK's core business is civil-engineering EPC: MRT Orange Line west section (CK-led), Xayaburi 1,285 MW hydropower dam (Laos, CK civil lead, Nawarat partner), Bangkok-Nakhon Ratchasima high-speed rail Phase 1 (CK civil lead on China-funded project), dam, water-infrastructure work, airport, motorway civil. Revenue mix skews heavily civil-infrastructure vs building. The group-level affiliates (CK Power / SET:CKP for generation, TTW for water supply, Bangkok Expressway and Metro / SET:BEM for expressway, MRT operations) are strategically positioned to absorb CK's EPC output into long-term concession revenue streams.[]
Strategic position: CK is the disciplined-operator pick in Thai listed construction. Unlike ITD (largest by top-line but infrastructure-heavy margin volatility, Myanmar Dawei legacy) or STEC (balanced but no group-level recurring-revenue cushion), CK runs the EPC franchise alongside a utility-concession portfolio that smooths earnings. Consistently highest ROE in the civil-contractor stack. The binding operational risk is project-selection discipline β CK's track record depends on passing on lower-quality contracts, which requires continued family-oversight alignment.[]
Business segments
Core EPC
Civil infrastructure β MRT, dam, motorway
EPC franchise across MRT Orange Line west section, Xayaburi 1,285 MW hydropower (Laos), Bangkok-Nakhon Ratchasima HSR Phase 1, dam, water-infrastructure, airport, motorway civil. Revenue skews civil-infrastructure vs building.
Listed affiliate
BEM β Bangkok Expressway and Metro
SET: BEM operates Bangkok's expressway network and MRT Blue, Purple lines under long-term concessions. Stable, volume-driven concession cashflow. CK's largest listed-affiliate position providing recurring-revenue cushion vs EPC cycle.
Listed affiliate
CKP β power generation, TTW β water supply
CK Power (SET: CKP) holds Xayaburi, solar generation assets. TTW (SET: TTW) operates water-supply concessions. Both provide utility-style earnings that smooth EPC lumpiness β the group-level portfolio advantage over peers without recurring-revenue cushion.
International
Xayaburi hydropower β Laos
Xayaburi 1,285 MW hydropower dam on Mekong, commissioned 2019. CK civil lead during construction; now held via CKP equity stake. Future Mekong dam pipeline (Pak Beng, Luang Prabang) depends on regional politics, ASEAN power-pooling agreements.
Watchpoints
MRT Orange Line delivery
CK-led west section target operational 2027; delivery discipline drives near-term revenue recognition.
Bangkok-Nakhon Ratchasima HSR Phase 1
China-funded project behind original schedule; CK civil role, re-negotiation, delivery timing.
Xayaburi, future hydropower
Xayaburi operational; next dam opportunities (Luang Prabang, Pak Beng) depend on regional cross-border power-pooling politics.
Thai listed civil contractors β peer comparison
Listing
SET: ITD
FY2024 revenue
~ $1.59B
Flagship project
MRT Orange Line east, Don Mueang T3
Differentiator
Largest by revenue; Dawei legacy risk
| Company | Listing | FY2024 revenue | Flagship project | Differentiator |
|---|---|---|---|---|
| Italian-Thai Development | SET: ITD | ~ $1.59B | MRT Orange Line east, Don Mueang T3 | Largest by revenue; Dawei legacy risk |
| CH. Karnchang | SET: CK | ~ $1.01B | MRT Orange Line west, Xayaburi | Highest ROE; group utility portfolio (CKP, TTW, BEM) |
| Sino-Thai Engineering | SET: STEC | ~ $724.6M | Balanced building, infrastructure | No group-level utility cushion; balanced margin |
Related Market profiles
Peers, parents, partners, agencies, and other Construction & Engineering actors.
Competitor
Italian-Thai Development
Largest civil contractor by revenue; ITD east section vs CK west section on MRT Orange Line.
Open Market profile β
Competitor
Sino-Thai Engineering and Construction
Third major; balanced building, infrastructure without CK's group portfolio.
Open Market profile β
Sector peer
Christiani & Nielsen (Thai)
Danish-heritage diversified contractor since 1930; building, civil, marine, industrial; FY2024 revenue ~ $173.9M.
Open Market profile β
Sector peer
Nawarat Patanakarn
Mid-cap civil, water, environmental-engineering specialist; Xayaburi partner with CK; FY2024 revenue ~ $289.9M.
Open Market profile β
Sources + data provenance
Every filing, filing-adjacent register, or trusted industry source cited in this profile.
CH. Karnchang PCL (SET: CK) FY2024 Form 56-1 One Report
| Source | Publisher | Grade | As of |
|---|---|---|---|
| CH. Karnchang PCL (SET: CK) FY2024 Form 56-1 One Report | CH. Karnchang PCL | Primary | 2025-03-31 |
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competitor
Italian-Thai Development
Largest-revenue Thai civil contractor; MRT Orange Line east, Suvarnabhumi, Don Mueang; FY2024 revenue ~THB 55B; Dawei legacy watchpoint.
competitor
Sino-Thai Engineering and Construction
Third major Thai civil contractor; balanced building, infrastructure; FY2024 revenue ~THB 28B; no offshore legacy risk.