TKC Launches “ThaiCA” Digital Certificate Service
Turnkey Communication Services Public Company Limited (TKC) has officially launched a new service under the name “ThaiCA”, aimed at strengthening Thailand’s digital security infrastructure and building trust in electronic transactions. This initiative supports the needs of government agencies, private sector organizations, and the general public in the digital economy era.
The core concept of ThaiCA is to establish a foundation of trust and security for electronic transactions—whether between citizens and government agencies or between businesses involved in high-value contractual agreements.
ThaiCA provides digital certificates to individuals, organizations, and corporate employees for use in online document signing. These certificates verify the identity of the signer and are used in conjunction with digital signing software. The service is designed to support identity verification and document authenticity, ensuring confidence in critical transactions. It complies with relevant legal frameworks and international security standards, enabling users to operate securely, accurately, and with full legal validity—preventing signature forgery and unauthorized third-party access.
Mr. Piya Jirapapongsa, Deputy Managing Director of TKC, stated that ThaiCA functions similarly to a national ID card in the digital realm, serving as a key tool in establishing new standards for Thailand’s digital transactions.
ThaiCA operates by issuing electronic certificates directly, ensuring both reliability and security. The service offers three main types of certificates:
- Personal Certificate – Enhances individual digital identity with secure and verifiable credentials.
- Enterprise Certificate – Certifies the identity of organizations and government agencies.
- Enterprise User Certificate – Allows employees to sign documents on behalf of their organizations securely.
The issuance of ThaiCA certificates aligns with Thailand’s Electronic Transactions Act and international technology standards, ensuring that digital signatures are legally binding and secure.
Mr. Piya further noted that, according to a market survey by the Electronic Transactions Development Agency (ETDA), the digital certificate market was valued at over 140 million Baht in 2024 and is expected to grow steadily. The government sector alone demands certificates for approximately 4 million individuals annually, making it a significant market. Projections suggest that by 2026–2028, the market value could reach 400–500 million Baht, with current annual growth at 700%. TKC aims to capture over 30% of the market share in its first year.
“TKC believes that ThaiCA is not just a technological system but a tangible form of trust. It marks a crucial step in laying a strong foundation for Digital Trust in Thailand—enhancing economic security, boosting competitiveness, and promoting transparency across all levels of the digital economy, from government and businesses to the general public. This will help propel Thailand toward a trustworthy and sustainable digital society,” Mr. Piya concluded.
Mr. Ekkapol Promratanapong, Director of Public Safety at TKC, added that the service will be offered in two phases. In the first year, it will focus on B2B (business-to-business) services. In the following year, the service will be available to the general public through an online platform. The certificates can be used for certifying electronic receipts (e-Receipts) and electronic tax invoices (e-Tax Invoices), which are digitally signed using electronic certificates. TKC is currently in discussions with the Revenue Department regarding this integration.
Website: https://www.thaica.com/