China Testing & Certification International Group Co., Ltd. (CTC, Stock Code 603060) originated from the testing and certification business of China Building Materials Academy in the 1950s. After 70 years of unremitting efforts and persistent pursuit, the company has formed five business categories: detection and testing, certification and evaluation, testing instruments and intelligent manufacturing, measurement and calibration, scientific research and technical services, committed to providing customers with technical services and comprehensive solutions of detection and testing, certification and evaluation, appraisal, consultation, training, and instruments and equipment in fields of quality, environmental protection, green, safety, health, and energy conservation.

The acidification of cultivated land in China is a growing problem, particularly prominent in the main cash crop and grain-producing areas of Southern China (e.g., Hunan, Jiangxi, Fujian, Guangdong) and certain horticultural zones (such as orchards and tea plantations). Acidification directly inhibits soil biological activity and interferes with the transformation of nutrient forms. It also reduces the availability of essential elements like phosphorus, potassium, and calcium. Simultaneously, the acidic environment promotes the release of metal ions such as manganese (Mn) and aluminum (Al) through dissolution, exerting toxic effects on crops. Ultimately, this severely limits the productive capacity of cultivated land and the sustainable development of agriculture.
Agricultural and Rural Authorities / Competent Departments
1. Implementation Technical Services for Acidified Cultivated Land Remediation: Tailor improvement plans based on specific acidification characteristics. Implement soil improvement measures including enhancing the plow layer fertility and applying soil conditioning materials.
2. Effectiveness Monitoring and Evaluation Services: Conduct supervisory sampling and testing of soil and applied materials before and after the implementation of acidified land remediation. Following project implementation, perform professional evaluations of indicators such as cultivated land soil pH, cultivated land quality grade, and grain production capacity.
Authoritative Qualification: Possesses industry-recognized qualifications such as CMA and CNAS; reports are recognized by multiple departments; 11 affiliated institutions have been selected as laboratories for the Third National Soil Survey.
National Service Network Coverage: Leveraging the network of subsidiaries across 12 provinces, it can respond quickly to client needs, carry out work locally, and ensure efficient project execution.
Diversified Services: Provides full lifecycle technical services from cultivated land quality survey, monitoring, and risk assessment to remediation and restoration plans, meeting clients’ diverse needs.
Extensive Service Experience: Deeply involved in major projects such as the Third National Soil Survey, cultivated land remediation/improvement, and local cultivated land quality surveys and evaluations, accumulating solid service experience.
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