Testimonium:
API SPEC 7K Certification
API SPEC 16C Certification
Quality Management System Certification (conforming to GB/T19001-2016 ISO9001: 2015)
Environmental Management Systema Certification (conformans GB/T24001-2016 ISO14001: 2015)
Salus et Salus Occupationalis Management Systema Certification (conformans ad GB/T45001-2020 ISO45001: 2018)
Honor certificatorium;
AAA Inceptum Credit Rating Certificatorium;
AAA gradu incepti fidem rating certificatorium;
AAA gradu contractus permanentis et certi operis certificatorium;
AAA gradu qualitas muneris integritatis incepti;
AAA level Monstra domus honestae operationis;
AAA gradu honestus elit;
Quinque stella producta post-venditio muneris certificationis certificatorium;
MA Coal Safety Mining Product Safety Mark Certificate.