June 12, 2025 –
AsiaMB Exclusive: Guangxi’s Calcium Carbonate Industry Leap to Transform Masterbatch Supply Chain
China’s masterbatch industry is set to benefit from a major materials breakthrough as Guangxi’s Long’an County secures two landmark projects worth 1.1 billion yuan in advanced calcium carbonate production. These developments promise to elevate domestic supply of high-performance fillers critical for specialty masterbatch formulations.
The flagship project by Guangxi Hetai Investment Group represents a technological milestone:
• 1 million-ton annual capacity of nano-grade calcium carbonate
• First Chinese adoption of Maerz twin-shaft lime kiln technology
• 1.2 billion yuan projected annual revenue
• Zero-waste production with byproduct utilization
“For masterbatch producers, this means consistent access to premium-grade fillers that meet international standards,” commented Hetai’s Chief Engineer Zheng Jiasheng. The nano-CaCO₃ production line specifically targets demanding applications in:
- High-opacity white masterbatches
- Engineering plastic compounds
- Specialty film applications
Concurrently, Wuxuan Baofeng Mining’s 1.5 million-ton project introduces:
• Two-phase expansion for tailored particle size distribution
• Advanced surface treatment capabilities
• 140 million yuan annual output value
Industry analysts highlight three key implications for masterbatch manufacturers:
- Reduced import dependence for high-end fillers
- Improved cost stability through domestic premium supply
- Enhanced formulation flexibility with specialized grades
Long’an County’s strategic development, leveraging its 98% purity limestone reserves, positions Guangxi as Asia’s new hub for advanced mineral additives. The projects incorporate circular economy principles, with waste streams repurposed for construction materials – a model gaining traction among environmentally-conscious compounders.