Masthawin Charnvirakul

Chief Executive Officer at STP&I

Net worth: 14 M $ as of 30/06/2026

54 year

46 connections

Producer Manufacturing

Consumer Services

Utilities

Profile

Masthawin Charnvirakul is currently Chairman at Fill Up Network Co. Ltd. Current roles also include Director at Sino-Thai Engineering & Construction Public Co. Ltd. since 1996, Managing Director & Executive Director at STP&I Public Co. Ltd. since 2016, Managing Director & Director at STIT Co. Ltd. since 2002, Director at ST Property & Logistics Co. Ltd., Cannatory Co. Ltd., Impact Solar Co. Ltd., Impact Solar Group Thailand Co., Ltd., Impact Solar Group Ltd., and Director at Stecon Group Public Co. Ltd. since 2023.
Former positions include Non-Executive Director at Thai Solar Energy Public Co. Ltd. from 2019 to 2024 and Marketing Manager at The Siam Cement Public Co. Ltd. Education includes an MBA from the University of Southern California and undergraduate studies at the University of Chulalongkorn.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
1.68%	28/03/2025	25,457,142 ( 1.68% )	14 M $	30/06/2026

Masthawin Charnvirakul active positions

Companies	Position	Start
STP&I	Chief Executive Officer	19/04/2010
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	09/12/1996
STIT Co. Ltd. STIT Co. Ltd. Metal FabricationProducer Manufacturing Manufactures fabricated steel components	Chief Executive Officer	01/01/2002
Fill Up Network Co. Ltd.	Chairman	-
ST Property & Logistics Co. Ltd.	Director/Board Member	-
Cannatory Co. Ltd.	Director/Board Member	-
Impact Solar Co. Ltd. Impact Solar Co. Ltd. Alternative Power GenerationUtilities Manufactures solar rooftop systems	Director/Board Member	-

All active positions of Masthawin Charnvirakul

Former positions of Masthawin Charnvirakul

Companies	Position	End
THAI SOLAR ENERGY	Director/Board Member	13/08/2024
THE SIAM CEMENT	Sales & Marketing	-

See the detail of Masthawin Charnvirakul's experience

Training of Masthawin Charnvirakul

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Masthawin Charnvirakul's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	11
The Siam Cement Public Co. Ltd. The Siam Cement Public Co. Ltd. Construction MaterialsNon-Energy Minerals Operates as a holding company whose subsidiaries manufactures and distributes cement, ready-mixed concrete and chemical 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
University of Southern California University of Southern California Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
University of Chulalongkorn University of Chulalongkorn Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
STIT Co. Ltd. STIT Co. Ltd. Metal FabricationProducer Manufacturing Manufactures fabricated steel components	Producer Manufacturing
Thai Solar Energy Public Co. Ltd. Thai Solar Energy Public Co. Ltd. Alternative Power GenerationUtilities Generates biomass and solar renewable energy	Utilities
Impact Solar Co. Ltd. Impact Solar Co. Ltd. Alternative Power GenerationUtilities Manufactures solar rooftop systems	Utilities
Fill Up Network Co. Ltd.
ST Property & Logistics Co. Ltd.
Cannatory Co. Ltd.