![Chamni Janchai](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Chamni Janchai
Director/Board Member at
STP&I
Net worth: 120 592 $ as of 30/08/2026
Profile
Chamni Janchai is currently Vice Chairman at STP&I Public Co. Ltd. since 2025, Chairman at Cannatory Co. Ltd., and Independent Director at Sino-Thai Engineering & Construction Public Co. Ltd. since 1999.
Former positions include Chairman & Chief Executive Officer at CJ Morgan Co., Ltd. from 1999 to 2015, Chief Executive Officer & Director at BMP Energy Public Co. Ltd. from 2015 to 2018, Chairman at Thai Capital Corp.
Public Co., Ltd., Chairman at Max Metal Corp.
Public Co., Ltd. in 2015, Chairman at Burapa Steel Industries Co. Ltd., Independent Director at Thaitheparos Public Co., Ltd. from 1993 to 2011, Director & Deputy Managing Director at Tata Steel Manufacturing (Thailand) Plc from 1990 to 1999, Independent Director at RPCG Public Co., Ltd. from 2016 to 2021, Executive Director at Iron & Steel Institute of Thailand from 2004 to 2005, Director at Betong Biofuel Co. Ltd. from 2015 to 2017, Director at Betong Green Power Co. Ltd. from 2015 to 2017, Director at Chumphon Biofuel Co. Ltd. from 2015 to 2018, Independent Director at Stecon Group Public Co. Ltd., Vice President at GJ Steel Public Co., Ltd., President at CJM Consult Co. Ltd. from 2013 to 2019, and Vice President at Nakorn Thai Strip Mill Plc.
Education includes undergraduate and MBA degrees from Thammasat University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
R.S. Public Co. Ltd.
 R.S. Public Co. Ltd. Movies/EntertainmentConsumer Services Produces and distributes television, music, radio and related entertainment programs 1.31% | 13/03/2025 | 28,576,326 ( 1.31% ) | 120 592 $ | 30/08/2026 |
Chamni Janchai active positions
| Companies | Position | Start |
|---|---|---|
| STP&I | Director/Board Member | 08/04/1999 |
Cannatory Co. Ltd. | Chairman | - |
Sino-Thai Engineering & Construction Public Co. Ltd.
 Sino-Thai Engineering & Construction Public Co. Ltd. Engineering & ConstructionIndustrial Services Engages in construction of infrastructure, energy and buildings | Director/Board Member | 20/04/1999 |
Former positions of Chamni Janchai
| Companies | Position | End |
|---|---|---|
| RPCG | Director/Board Member | 30/11/2021 |
CJM Consult Co. Ltd. | Chief Executive Officer | 31/12/2012 |
Chumphon Biofuel Co. Ltd. | Director/Board Member | 31/12/2017 |
BMP Energy Public Co. Ltd.
 BMP Energy Public Co. Ltd. Electric UtilitiesUtilities Engages in the production and distribution of electricity from renewable energy, power plant and solar energy | Chief Executive Officer | 31/12/2017 |
Betong Green Power Co. Ltd.
 Betong Green Power Co. Ltd. Electric UtilitiesUtilities Generates electricity | Director/Board Member | 31/12/2016 |
Training of Chamni Janchai
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
50
1st degree connections
19
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 19 |
|---|---|
GJ Steel Public Co., Ltd.
 GJ Steel Public Co., Ltd. SteelNon-Energy Minerals Manufactures hot-rolled steel products | Non-Energy Minerals |
Sino-Thai Engineering & Construction Public Co. Ltd.
Sino-Thai Engineering & Construction Public Co. Ltd. Engineering & ConstructionIndustrial Services Engages in construction of infrastructure, energy and buildings | Industrial Services |
STP&I Public Co. Ltd.
 STP&I Public Co. Ltd. Metal FabricationProducer Manufacturing Manufactures fabricated steel components | Producer Manufacturing |
Thai Capital Corp. Public Co., Ltd.
 Thai Capital Corp. Public Co., Ltd. Auto Parts: OEMProducer Manufacturing Engages in the import, distribution, and trade of coal and minerals | Producer Manufacturing |
Thaitheparos Public Co., Ltd.
 Thaitheparos Public Co., Ltd. Food: Major DiversifiedConsumer Non-Durables Produces and sells sauces and condiments | Consumer Non-Durables |
Tata Steel Manufacturing (Thailand) Plc
 Tata Steel Manufacturing (Thailand) Plc SteelNon-Energy Minerals Produces steel products | Non-Energy Minerals |
Max Metal Corp. Public Co., Ltd.
 Max Metal Corp. Public Co., Ltd. Auto Parts: OEMProducer Manufacturing Engages in production and distribution of small diesel and gas engines, engine components and spare parts for agricultural industry | Producer Manufacturing |
RPCG Public Co., Ltd.
 RPCG Public Co., Ltd. Oil Refining/MarketingEnergy Minerals Manufactures and distributes fuel oil and petrochemical products | Energy Minerals |
Burapa Steel Industries Co. Ltd.
 Burapa Steel Industries Co. Ltd. Metal FabricationProducer Manufacturing Manufactures steel reinforcing bars for concrete | Producer Manufacturing |
Thammasat University
 Thammasat University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Iron & Steel Institute of Thailand | |
CJM Consult Co. Ltd. | |
CJ Morgan Co., Ltd. | |
BMP Energy Public Co. Ltd.
BMP Energy Public Co. Ltd. Electric UtilitiesUtilities Engages in the production and distribution of electricity from renewable energy, power plant and solar energy | Utilities |
Betong Biofuel Co. Ltd. | |
Betong Green Power Co. Ltd.
Betong Green Power Co. Ltd. Electric UtilitiesUtilities Generates electricity | Utilities |
Chumphon Biofuel Co. Ltd. | |
Cannatory Co. Ltd. | |
Nakorn Thai Strip Mill Plc |
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