Yiyang Cement Prefabricated Housing

Yiyang has formed a comprehensive development pattern in the field of cement prefabricated housing (prefabricated buildings) characterized by policy guidance, corporate innovation, industrial agglomeration, and sound supervision, as detailed below:

I. Clear Policy Support and Industrial Planning

Yiyang City has incorporated the prefabricated building industry into its top ten industrial chains and modern industrial system, driving rapid industry development through quantifiable targets. In 2024, the proportion of newly started prefabricated building area reached 45.34%, with plans to increase it to 55.87% by 2025. The government issued the "Three-Year Action Plan for Enhancing the Development of Prefabricated Buildings in Yiyang City (2024-2026)", aiming to establish eight innovative systems in policy, management, building materials, and other areas by 2026, and double industry output value. The policy forms a closed loop from planning to execution, providing institutional guarantees for large-scale industrial development.

II. Significant Technological Breakthroughs by Leading Enterprises

1. Hunan Linya Building Materials Technology Co., Ltd.: As a subsidiary of Zhejiang Linya Group, its Taojiang production base has a total investment of 280 million yuan, focusing on green and energy-saving building products. The company adopted the "prefabricated partially-encased steel-concrete composite structure technology" to build Hunan's first fully prefabricated multi-story office building (Hunan Lingge Huixiong Project), achieving five major advantages such as a 30%-50% reduction in construction time and an 80%-90% decrease in construction waste. Technological achievements have been directly translated into engineering benefits.
2. Yiyang Hengchang Concrete Co., Ltd.: With qualifications for ready-mixed concrete and prefabricated component production, its business covers the entire process of prefabricated components, providing basic material support for prefabricated buildings and improving upstream supporting capabilities in the industrial chain.

III. Diversified Industrial System Layout

Yiyang City has formed a complete industrial system covering PC components, bamboo-wood structures, steel structures, and other products, with seven large-scale production enterprises. For example:

• Taohuajiang Bamboo: Focuses on prefabricated bamboo structure buildings, expanding applications of low-carbon materials;
• Chengyou Green Building and Green Building Technology: Selected as leading enterprises in prefabricated buildings across the province, promoting technological breakthroughs and cross-sector collaborations.
  This diversified layout enables Yiyang to meet different scenario demands and enhance market competitiveness.

IV. Strengthened Supervision to Regulate Market Order

In response to illegally operated cement prefabricated component factories, a joint investigation team from Heshan District, Yiyang City, launched a special rectification campaign. They investigated违规 (violating) enterprises, ordered work stoppages and rectifications, dismantled production facilities, and imposed administrative penalties for issues such as forest land occupation and environmental pollution. They also required land reclamation and construction waste cleanup. Supervisory actions have purified the market environment and ensured healthy and sustainable industry development.