Breaking japan's monopoly! china mass produces 4n grade high-purity calcium carbonate, adding "domestic confidence" to high-end manufacturing

Zhuansu Vision has learned that China has achieved a major breakthrough in the field of key basic materials —Domestic 99.99% ultra-high-purity calcium carbonate achieves a comprehensive breakthrough.thoroughly end the long-term overseas monopoly pattern and lay a solid domestic supply chain foundation for high-end industries such as chip packaging, electronic ceramics, and new energy.

This milestone achievement comes fromNingbo Songsheng New Materials Technology Co., Ltd.The production line for 20,000 tons of electronic-grade ultra-high-purity calcium carbonate per year will officially start production this August.The first in China to achieve large-scale mass production of 4N-grade (purity ≥99.99%) calcium carbonateThe enterprise’s measured purity reached as high as 99.990424%, with performance on par with top international standards.

A decade of painstaking effort has forged a single sword, achieving full-chain breakthroughs from raw materials to manufacturing processes.

High-purity calcium carbonate has long been monopolized by a few countries such as Japan, with the core pain point lying in...Dependence on imported raw materials, difficulties in achieving breakthroughs in purification technology, and inability to scale up production capacity.Domestic companies have long remained stuck at the 3N thousand-ton low-end production capacity, while the high-end market is entirely controlled by others.

Songsheng New Materials, backed by a PhD R&D team from Fudan University, has achieved three major core breakthroughs after 10 years of technical research and development and an R&D investment exceeding 20%.

Raw material autonomyAbandon reliance on imported raw materials—high-purity products can be produced using ordinary calcium carbonate, completely breaking the spell of high costs and gaining pricing power in the market.

·Technology localizationOvercoming three key challenges—high-purity purification, precise particle size control, and low-impurity management—single impurities can be precisely controlled, supporting customized high-purity powders of 3N, 4N, and 5N.

Scaled-up production capacityFrom a 3N kiloton scale to a 4N ten-thousand-ton scale, it has raised the domestic production capacity ceiling and become one of the few companies worldwide capable of supplying high-purity 4N-grade calcium carbonate on a large scale.

Application coverage, empowering the entire high-end manufacturing industry chain.

The newly achieved 4N and 5N ultra-high-purity calcium carbonate is no longer limited to traditional fields such as food and pharmaceuticals, but is moving directly intoCore Tracks of High-End Manufacturing：

· Electronic Information: chip packaging, electronic ceramics, 5G communications

New energy sector: lithium batteries, photovoltaic materials

High-tech fields: optical lenses, aerospace, chemical testing, life sciences

Currently, Songsheng New Material's high-purity calcium carbonate has been sent to well-known domestic electronic ceramics, chip packaging, and new energy companies for testing. The product stability has been recognized by downstream clients, and in the future, it will also enter high-end markets in Japan, South Korea, and other overseas regions.

Domestic substitution speeds up, key materials are no longer "stuck by the neck."

The domestic calcium carbonate industry has long beenHigh investment, high energy consumption, low profit, and price competition.the predicament, with food-grade and pharmaceutical-grade products also constrained by raw materials and supply chains.

The breakthrough of Songsheng New Materials is not only a milestone for the company, but also an important step for the domestic substitution of key basic materials in China.Comprehensively surpassing in purity, particle size, and production capacityLet high-end manufacturing break free from its dependence on imported high-purity powders, and inject real “domestic confidence” into Made in China 2025.

From following to leading, China’s high-purity calcium carbonate has officially entered a new era of independent and controllable development!