Biokoxu is committed to deepening its expertise in the industry, consistently building quality through a professional approach.

Recently, the company has achieved another milestone—following the successful acquisition of the National Reference Material Grading Certificate, it has now also been awarded the CNAS 17034 Accreditation Certificate for Reference Material Producers (Certificate No.: CNAS RM0057). This is a high recognition of the company’s technical prowess and professional standards, marking yet another significant landmark in its development journey!

I. A Testament to Strength: From National Grading to CNAS 17034 Accreditation

National Reference Material Grading Certificate + CNAS 17034 Accreditation Certificate: Dual Authoritative Accreditations Showcase Core Competence

The National Reference Material Grading Certificate is an authoritative endorsement of the quality and level of the reference materials produced by the company. It requires the enterprise to possess advanced facilities, professional personnel, and precise analytical measurement equipment suitable for the production of reference materials, and to apply strictly in accordance with relevant regulations.

On July 10, 2025, the company received the CNAS 17034 Accreditation Certificate issued by the China National Accreditation Service for Conformity Assessment (CNAS). The attainment of this certificate signifies that the company’s capabilities in the research and development of reference materials/reference samples have reached internationally recognized standards. It confirms that the company possesses the qualification and capability to develop reference materials within the accredited scope according to relevant international guidelines. Certificates issued for the company’s product capability list will carry greater authority and international credibility, gaining widespread recognition globally.

The successive acquisition of these two crucial certificates fully demonstrates the company’s technical accumulation and comprehensive strength in the field of reference material development. Obtaining both certifications is highly challenging, imposing strict requirements on the applicant’s technical capabilities, management level, and other aspects. The application process requires not only significant investment of human, material, and financial resources, focused on improving the management system and conducting research on sample homogeneity and stability, but it is also characterized by a lengthy certification cycle, posing a substantial test to personnel stability and professional qualifications. Ultimately, Jiangsu Kexu Biotechnology Co., Ltd., relying on its own strength, unwavering determination, and relentless effort, successfully overcame numerous challenges to secure both certifications.

The Birth of Every Reference Material Involves Hundreds of Rigorous Verifications

II. Building on the Past, Advancing Together, Hand in Hand

Holding both certificates, Jiangsu Kexu Biotechnology Co., Ltd. now stands at a higher starting point and shoulders greater responsibility. In the future, the company will continue to be guided by technological innovation, constantly enhancing the technical level and management capabilities in reference material development to provide customers with more diversified and personalized products and services. Simultaneously, the company will fully leverage its exemplary and leading role within the industry, actively participate in the formulation and refinement of industry standards, and promote the standardization and normalized development of the entire industry.

Here, we sincerely extend our gratitude to all friends from various sectors who have consistently cared for and supported the development of Jiangsu Kexu Biotechnology Co., Ltd. It is precisely because of your trust and support that the company has been able to overcome all obstacles on its development path and achieve today’s accomplishments. Finally, we thank the review experts for their stringent requirements and attentive guidance, which enabled our persistent efforts to improve the quality system for reference material development.

III. Our Areas of Specialization

Custom synthesis of novel (patented or post-patent compound) pesticide reference materials.
Scarce pesticides, such as Pyrethrin I/II, Spinosyn A/D, Spinetoram J/L, Abamectin B1a/B1b, Sedaxane cis/trans isomers.
Custom synthesis of pesticide impurity reference materials, such as sulfone and sulfoxide type pesticide impurities (e.g., Clethodim sulfone/sulfoxide, Fenthion sulfone/sulfoxide, etc.), and the Brassinolide series.
Custom synthesis of pharmaceutical impurity reference materials, such as Calcium Ketophenylalaninate Impurity E (23186-94-9), (S)-3,4-Diamino-4-oxobutanoic acid, (R)-2,5-Diaminopentanoic acid monohydrochloride, Cycloarginine, Ibuprofen series impurities, etc.
Development of mixed standard solutions for series like GB 23200.113 and GB 23200.121.
Custom synthesis of synthetic biology reference materials (e.g., Antimicrobial peptide Subtilin 37).

IV. Contact Us

Phone: Mr. Liu 13776846735, Mr. Gu 15851932062, 0519-89988589

📍 Address: No. 8 Changxiu Road, Economic Development Zone, Wujin District, Changzhou, Jiangsu Province, China

Email: justin.liu@bioguidelab.com, biokoxu@bioguidelab.com