Greenstone Industry Co., Ltd. is a small and medium-sized enterprise established in 2007, headquartered in Yangju-si, Gyeonggi-do, primarily engaged in the intermediate treatment of construction waste and the production of recycled aggregates. Led by CEO Jo Man-hyung, the company employs approximately 30 people.

"Established in 2007, Greenstone Industry Co., Ltd. is a leading company in the field of intermediate treatment of construction waste and production of recycled aggregates, located in Yangju-si, Gyeonggi-do. Going beyond simple waste collection, we possess independent patented technologies such as the 'Air Mix Crusher' and 'Specific Gravity Control Type Weight Mixing Device'. By applying these to our processes, we mass-produce high-quality recycled aggregates comparable to natural aggregates. As of 2023, with a revenue of approximately 11.1 billion KRW and solid equity (approximately 19.9 billion KRW), we have a very stable financial structure. We are an environmental specialized company that maximizes resource circulation efficiency through technological innovation while also demonstrating exemplary ESG management by practicing a culture of sharing through donations to the local community."

Business Areas

• Construction Waste Intermediate Treatment and Sorting Service: We collect waste concrete and waste asphalt from construction sites in the northern Seoul metropolitan area and perform intermediate treatment safely in accordance with environmental guidelines. By operating advanced crushing and sorting facilities, we recover over 90% of valuable resources from waste, minimizing environmental costs associated with landfill.
• Recycled Aggregate Production: By applying proprietary patented technologies such as the 'Air Mix Crusher' and 'Specific Gravity Control Type Weight Mixing Device' to our processes, we mass-produce high-quality recycled aggregates comparable to natural aggregates. This provides construction companies with efficient waste treatment solutions while creating the public value of resource recycling.

Products

• High-Quality Recycled Aggregate: High-quality recycled aggregates produced using proprietary patented technology during the intermediate treatment of construction waste boast quality comparable to natural aggregates and are recycled in various construction sites.
• Construction Waste Intermediate Treatment Service: We provide services to safely and efficiently intermediate treat construction waste such as waste concrete and waste asphalt generated from construction sites, in accordance with environmental guidelines.

Special Notes

• Independent Patented Technology: We possess independent patented technologies such as the 'Air Mix Crusher' and 'Specific Gravity Control Type Weight Mixing Device', which are applied in our processes to produce high-quality recycled aggregates and improve waste treatment efficiency.
• Stable Financial Structure: Based on a revenue of approximately 11.1 billion KRW and a solid equity of approximately 19.9 billion KRW as of 2023, we have a very stable financial structure, laying the foundation for sustainable growth.
• Practicing ESG Management: As an environmental specialized company, we demonstrate exemplary ESG management by maximizing resource circulation efficiency through technological innovation and practicing a culture of sharing through donations to the local community.

Recruitment Information

• Main Hiring Positions: Recruitment may occur in positions related to construction waste collection, transportation, and intermediate treatment, production/process management, and heavy equipment operation.
• Benefits: Annual leave, summer vacation, half-day leave, and Labor Day off are provided. The organizational culture allows for flexible dress code and has no mandatory company dinners or overtime.

💡 A Word from JobPloy
Greenstone Industry Co., Ltd. plays a crucial role in the field of construction waste treatment and recycled aggregate production. This field may involve physical labor such as on-site work and heavy equipment operation, making it suitable for foreign workers with relevant experience or skills. The company offers a flexible work environment with no mandatory company dinners or overtime, and well-established annual leave and vacation systems, making it a good environment for those who value work-life balance.