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BYD Battery Achieves Our First-Ever SAS-Accredited ISO/SAE 21434 Certification in China

May 29, 2026

We are proud to award BYD Lithium Battery Co., Ltd. our inaugural SAS-accredited ISO/SAE 21434 (road vehicles – cybersecurity engineering) certification in China.

This milestone, issued by CertX, part of SGS, strengthens BYD Battery’s global competitiveness and advances the industry’s approach to automotive cybersecurity management.

BYD Battery ISOSAE 21434 A

Linwang Deng, Director of BMS Factory at BYD Battery Division II, said: “New energy vehicles have entered a new phase of intelligent development and the industry’s global expansion is accelerating.

“Whether we are deepening our presence in the domestic market or expanding our overseas footprint, the importance of automotive cybersecurity and vehicle safety is increasingly evident. To further support the global expansion of our battery business, this time we cooperated with SGS, which has a service network spanning the globe.

“Moving forward, BYD Battery will actively embrace the wave of automotive intelligence while continuously strengthening our safety defenses, ensuring that users enjoy robust and reliable safety protection as they experience the convenience of smart mobility.”

We combined management system and process certification to help BYD Battery implement cybersecurity controls spanning organizational governance to the entire product life cycle, taking them from regulatory compliance to practical implementation. This approach significantly enhances the company’s trustworthiness within the global supply chain and the efficiency of market access. It not only meets domestic and international regulations, standards and requirements but also aligns with BYD Battery’s operations, providing a practical and verifiable model for implementation.

Effort Zhou, Regional Head of SGS Business Assurance, added: “ISO/SAE 21434 certification marks a new point for BYD Battery as it advances toward a higher level of automotive safety management. This achievement not only belongs to BYD Battery but also sets a benchmark for safety standards across the entire automotive industry.

“As more Chinese companies obtain ISO/SAE 21434 certification, the competitiveness of China’s automotive industry within the global supply chain will continue to improve, and overall safety and compliance standards will reach new heights.

“We will continue to provide enterprises with solutions that meet international standards and regulatory requirements, helping them confidently address global challenges and empowering high-quality development across various industries through our professional expertise.”

BYD Battery ISOSAE 21434 B

Cybersecurity development and compliance governance will assume even greater strategic importance. Leveraging our technical expertise and global resources, we will help enterprises achieve a comprehensive leap forward in cybersecurity and functional safety. By collaborating with companies across the entire automotive supply chain, we will support global automotive industry safety and sustainability.

What is ISO/SAE 21434?

ISO/SAE 21434 is the world’s first international standard for cybersecurity in the automotive industry. It aims to reduce the risk of cyberattacks by embedding cybersecurity into automotive products throughout their lifetime.

The benefits of certification include:

  • Ensure that products and services are developed and maintained in a secure and trustworthy management process
  • Better identify and mitigate potential threats and vulnerabilities
  • Indicate that you have conducted a security assessment with the greatest possible independence
  • Demonstrate your level of embedded cybersecurity to customers
  • Improve operational efficiency and reduce costs

Certification can also help you comply with other relevant standards and regulations, such as UNECE Regulation No. 155 (cybersecurity and cybersecurity management system) and General Data Protection Regulation (GDPR).

Why SGS?

As the world’s leading testing, inspection and certification company, we have extensive experience in the automotive and information and communications technology (ICT) sectors.

Our global network of SGS DIGITAL TRUST experts can support your entire ISO/SAE 21434 journey as well as vehicle regulatory certification, information and cybersecurity, privacy management and AI, among other areas.

Contact us today to discuss your exact needs.

About BYD Lithium Battery Co., Ltd.

BYD Lithium Battery Co., Ltd. was established in June 1998 as a wholly owned subsidiary of BYD Company Limited. Grounded in the new energy industry and with nearly three decades of expertise in the battery sector, the company holds independent R&D capabilities across the entire industrial chain and has mastered core battery technologies. Its market structure centers on lithium-ion power battery applications, with high-end consumer electronics lithium-ion batteries as a key component and energy storage lithium-ion batteries as a strategic focus for future growth. This positions the company to support both domestic and international markets as they increasingly reinforce one another.

For further information, please contact:

Nancy Zhang
Marketing Officer
Business Assurance
t: +86 (0)29 8638 1082

About SGS

SGS is the world’s leading Testing, Inspection and Certification company. We operate a network of over 2,500 laboratories and business facilities across 115 countries, supported by a team of over 100,000 dedicated professionals. With more than 145 years of service excellence, we combine the precision and accuracy that define Swiss companies to help organizations achieve the highest standards of quality, compliance and sustainability.

Our brand promise – when you need to be sure – underscores our commitment to trust, integrity and reliability, enabling businesses to thrive with confidence. We proudly deliver our expert services through the SGS name and a portfolio of trusted specialized brands, including Applied Technical Services, Brightsight, Bluesign and Nutrasource.

SGS is publicly traded on the SIX Swiss Exchange under the ticker symbol SGSN (ISIN CH1256740924, Reuters SGSN.S, Bloomberg SGSN SW).

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