Jianye Jianrong Holdings Limited is an investment holding company mainly providing foundation construction and supporting services to the public and private sectors in Hong Kong and Macau. The company is also engaged in drilling and site exploration engineering. The company operates through two business units: Foundation Construction and ancillary Services and drilling and site Exploration. The company's subsidiaries include drill-in Geotechnical Engineering Co., Ltd. And drill-even Geological Engineering Co., Ltd. The company engages in foundation piling business through its subsidiaries.