Rose Technology Co., Ltd. is a holding subsidiary of the Silver Valley Group. In 2009, Yingu Group actively participated in the 5.12 Wenchuan earthquake after the earthquake and came to Mianzhu to introduce Damascus rose from Bulgaria. After more than ten years of scientific experiments, it has successfully planted 12,000 mu of Damascus rose and won the national “organic certification”. “Green Certification” and “Modern Forestry Industrial Park”, “National Pollution-free Agricultural Planting Demonstration Base Project” has been approved by the General Administration of Quality Supervision, Inspection and Quarantine; it was named “China Rose Valley” by the China Flower Association and became the global Damascus Rose. One of the three major producing areas, the world's Damascus rose essential oil reserves first.