Hubei Jiaotou’s 4 Million Ton/Year Diabase Mining Project Officially Enters Operation
On March 28, 2025, the Caojiawan Diabase Mining Project, operated by Hubei Jiaotou Handu Mining Development Co., Ltd., successfully completed full-process testing of its crushed stone processing system. With finished aggregates now stored in silos, the project marks the official commencement of operations for Hubei Jiaotou Group’s first mining venture.
Located approximately 6.4 km northwest of Wandian Town, Zengdu District, Suizhou City, Hubei Province (about 19.2 km from downtown Suizhou), the mine holds diabase reserves of 48.4756 million tons for construction use, with a planned operational lifespan of 12.9 years. Handu Mining secured the mining rights for the Caojiawan diabase deposit on March 19, 2023. With a total investment of approximately ¥400 million, the project is designed for an annual output of 4 million tons.
Handu Mining has integrated principles of “resource efficiency, safety, environmental protection, and community harmony” throughout the project’s lifecycle. Key features include:
Bench mining with progressive slope rehabilitation.
Advanced processing: Soil removal via roller screens, primary crushing with jaw crushers, secondary/tertiary crushing with cone crushers, and shaping via vertical shaft impact crushers.
Dry processing system: A "three-stage, closed-circuit" method conducted entirely within enclosed steel structures, equipped with bag-type dust removal systems.
Smart logistics: Sealed storage silos and automated truck-loading systems.
Product Specifications:
The mine produces diabase aggregates in multiple grades:
Concrete: 0–5mm (mechanized sand), 5–10mm, 10–20mm, 20–31.5mm.
Asphalt surface layers: 0–2.36mm, 2.36–4.75mm, 4.75–9.5mm, 9.5–16mm, 4.75–13.2mm, 13.2–26.5mm, 26.5–31.5mm. Custom sizes are also available.
These high-quality materials are ideal for highway asphalt pavements, poured asphalt concrete, ultra-thin wear layers, ultra-high-performance concrete (UHPC), and standard concrete applications.
Next Steps:
Handu Mining aims to build a “green, smart, safe, eco-friendly, low-carbon” five-pillar mine model, balancing high-quality development with ecological preservation. The company seeks to become Hubei’s leading supplier of asphalt surface materials and a pioneer in high-performance concrete, setting a benchmark for state-owned mining enterprises while supporting Hubei Jiaotou Group’s vision of “advancing competitiveness and achieving excellence.” The project also aligns with Suizhou’s goal of establishing a demonstration zone for urban-rural integrated development.
