The rapid growth of the EV and energy storage industries is boosting demand for high-performance lithium batteries, driving the market for quality petroleum coke and synthetic graphite. The quality and particle size of calcined petroleum coke directly affect synthetic graphite performance, especially in anode production.

【Anode Materials】Summary of Major Anode Material Suppliers of Global Battery Leader CATL

CATL (Contemporary Amperex Technology Co., Limited), as the world's leading power battery manufacturer, has a large and diversified supply chain. As the company does not publicly disclose the specific purchase amounts or rankings of individual suppliers (due to commercial confidentiality), it is usually necessary to identify CATL's major anode suppliers by combining core partners in each field with industry analysis. The following are representative anode suppliers selected by the editor:

1. Shanshan Technology (Shangtai Technology)

Shangtai Technology is one of CATL's important suppliers of artificial graphite anode materials, focusing on the independent R&D and production of artificial graphite anodes. Through an integrated production model and process optimization, the company has built significant cost advantages. Its products perform well in specific capacity, compaction density, and rate capability, and it has provided stable supply to CATL for a long time while participating in CATL's new product development projects.

Shangtai Technology was awarded the "Annual Excellent Supplier" by CATL for its outstanding contribution to CATL's high-quality development in 2024. Shijiazhuang Shangtai Technology Co., Ltd., as the sole representative in the anode materials field, won CATL's "2024 Annual Excellent Supplier" honor for the third consecutive year, making it the only company in the industry to achieve this distinction for three consecutive years.

Shangtai's 4C high-rate fast-charging anode materials have been supplied in volume for CATL's Qilin batteries, suitable for the 800V high-voltage platform, with initial efficiency ≥92% and compaction density ≥1.8 g/cm³. Gross margin is 8–10 percentage points higher than conventional anodes. In the first half of 2025, Shangtai's anode material sales reached 141,200 tons, up 68.49% year-on-year, far exceeding the industry average growth of 37%. Fast-charging products accounted for over 50%, with unit prices 12% higher than conventional products.

The company's 200,000-ton anode material project in Xiyang, Shanxi (financed by RMB 1.7 billion in convertible bonds) will start construction in Q4 2025 and is expected to contribute capacity in 2026. Total capacity will exceed 500,000 tons, ranking the company among the global top three.

2. Kaijin Energy

Guangdong Kaijin New Energy Technology Co., Ltd. was established in March 2012 and is headquartered in Songshan Lake National High-tech Industrial Park, Dongguan, Guangdong Province. It focuses on R&D, production, and sales of artificial graphite anodes, silicon-based anodes, and hard carbon anodes for energy storage. Its products are widely used in power batteries, consumer batteries, and energy storage batteries. Major customers include CATL, BYD, Panasonic (Japan), LG (Korea), SKI (Korea), and Gotion High-Tech.

As one of the world's leading anode material suppliers, Kaijin ranks among the global top five in artificial graphite anodes and is one of CATL's Top 2 anode suppliers.

In Q1 2025, CATL awarded Kaijin the "Supplier Quality Excellence Award" for its outstanding product quality, stable delivery capability, and efficient service. Kaijin provides high-performance, highly consistent anode materials through intelligent manufacturing, strict quality control, and continuous innovation.

In September 2025, Kaijin signed a 200,000-ton high-performance anode material integrated project in Ningde at the World Energy Storage Conference, further deepening its cooperation with CATL.

3. Zhongke Electric

Founded in April 2004 and listed on the ChiNext Board in December 2009, Zhongke Electric is a leading anode material company producing power battery, energy storage, and consumer battery anodes.

In February 2022, Zhongke Electric and CATL established a joint venture, Guian New Area Zhongke Xingcheng Graphite Co., Ltd., to build a 100,000-ton integrated anode project. Zhongke Electric holds 65% and CATL (or its subsidiary) holds 35%, giving CATL priority purchase rights and ensuring supply security.

4. BTR (Beitri)

BTR is a global leader in anode materials, ranking No.1 in shipment volume for 15 consecutive years. It supplies CATL with silicon-based anodes, high-nickel cathodes, and hard carbon anodes. BTR's silicon-based anodes have reached the 6th generation, with specific capacity over 2000 mAh/g, and are widely used in CATL's power and energy storage batteries. The two companies have also established joint ventures for solid-state battery materials.

5. Shanshan Co., Ltd.

Shanshan is one of China's earliest artificial graphite anode producers, with complete proprietary technologies. Its shipments rank among the world's largest. It supplies CATL with fast-charging anodes and silicon-based anodes, including 6C ultra-fast charging anode materials.

6. Putailai

Putailai is a core Tier-1 supplier to CATL, focusing on artificial graphite and high-end silicon-carbon anodes, and maintains deep cooperation through long-term agreements and joint R&D.

7. Dongdao Energy

Guangdong Dongdao New Energy is CATL's largest supplier of natural graphite anodes. CATL accounted for 57.05% (2023) and 45.83% (2024) of Dongdao's revenue. The two also cooperate on artificial graphite and silicon-carbon anodes.

8. Xiangfenghua

Xiangfenghua supplies natural graphite, artificial graphite, and silicon-carbon anodes and has provided nano-silicon graphite composite anodes for CATL's condensed-state batteries. In H1 2025, related revenue rose 89% YoY.

Silicon-based Anodes: CATL's Heavy Investment

1. Lanxi Zhide New Energy

In November 2025, CATL's investment arm made a strategic investment in this silicon-anode company targeting solid-state battery materials.

2. Tianmu Pioneer

CATL invested via funds to promote CVD-scale production. The company is China's leading industrial platform for nano-silicon anodes and solid electrolytes.

Note: Due to CATL's many anode suppliers, this article summarizes only the major ones.

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