Certificates & Test Reports

One Million Dollar Export Tower Award 58th Trade Day · President of the Republic of Korea · 2021-12-06 Achieved USD 2 million in overseas exports (2020-2021) Hwangto Ceramic Ball Non-Toxicity Test Report Korea Far-Infrared Application Evaluation Institute, affiliated with the Korea Far-Infrared Association · 2021-07-05 Lead, arsenic, cadmium, and hexavalent chromium: none detected Activated Carbon Ball Deodorization Test Report Korea Far-Infrared Application Evaluation Institute, affiliated with the Korea Far-Infrared Association · 2021-09-09 96% ammonia deodorization rate after 120 minutes Synthetic Zeolite Ball Deodorization Test Report Korea Far-Infrared Application Evaluation Institute, affiliated with the Korea Far-Infrared Association · 2021-09-09 92% ammonia deodorization rate after 120 minutes Chlorine Removal Ball Residual Chlorine Removal Test Report Korea Environment & Water Institute (KEWI) · 2019-10-07 Residual chlorine 5.10 mg/L → not detected after 5 hours (100% removal rate) Inorganic Antibacterial Agent Antibacterial Activity Test Report FITI Testing & Research Institute · 2021 99.9% bacteriostatic reduction rate against Staphylococcus aureus and Klebsiella pneumoniae Multi-Porous Ceramic Ball Deodorization Test Report Korea Far-Infrared Application Evaluation Institute, affiliated with the Korea Far-Infrared Association · 2021-09-09 94% ammonia deodorization rate after 120 minutes Antibacterial Ball Test Report Korea Conformity Laboratories (KCL) · 2019-01-15 Antibacterial ball quality control test (KCL-FIR-1002:2018) Antibacterial Ceramic Ball RoHS Declaration of Conformity RoHS Directive (EU) 2015/863 · 2021-07-23 Meets Annex II restricted substance concentration limits · CE Vitamin Chlorine Ball Residual Chlorine Removal Test Report Korea Environment & Water Institute (KEWI) · 2020-09-01 Residual chlorine 5.00 mg/L → not detected after 5 hours Kum Yang Inorganic Antibacterial Agent (IAA) Antibacterial Efficacy Test Report Korea Far-Infrared Application Evaluation Institute, affiliated with the Korea Far-Infrared Association · 2021-05-13 99.9% bacteriostatic reduction rate against E. coli after 24 hours Kum Yang Inorganic Antibacterial Agent (IAA) Deodorization Efficacy Test Report Korea Far-Infrared Application Evaluation Institute, affiliated with the Korea Far-Infrared Association · 2021-05-07 94% ammonia deodorization rate after 120 minutes Ceramic Ball Test Report Korea Conformity Laboratories (KCL) · 2013-08-29 EPA Method 200.7 · Korean Drinking Water Quality Standard Test Methods Ceramic Ball Test Report Korea Conformity Laboratories (KCL) · 2013-08-29 EPA Method 200.7 · Korean Drinking Water Quality Standard Test Methods Patent Certificate — Eco-Friendly Multi-Porous Ceramic Ball Korean Intellectual Property Office · 2013-09-03 Composition for multi-porous ceramic balls and method for manufacturing the same CLEAN Workplace Certification Ministry of Labor · Korea Occupational Safety and Health Agency (KOSHA) · 2004-12-30 Recognized as a safe and pleasant CLEAN workplace Anti-Oxidant Alkaline Hydrogen Reducing Ball Test Report Korea Testing & Research Institute (KTR) Pb, Cd, Hg, Cr(VI): all items Not Detected ISO 9001 Quality Management System Certificate QA International Certification Ltd. (UKAS) · 2012-03-22 Manufacture of hwangto balls, ceramic balls, fertilizer, ceramic powder, and eco-friendly finishing materials Anti-Oxidant Alkaline Hydrogen Reducing Ball Test Report Korea Testing & Research Institute (KTR) · 2012-05 Pb, Cd, Hg, Cr(VI): all items Not Detected Alkaline Ceramic Ball Test Report Korea Testing & Research Institute (KTR) · 2012-05-10 Pb, Cd, Hg, Cr(VI): all items Not Detected Alkaline Ceramic Ball Test Report Korea Testing & Research Institute (KTR) · 2012-05-10 Pb, Cd, Hg, Cr(VI): all items Not Detected Alkaline Ceramic Ball Test Report Korea Testing & Research Institute (KTR) · 2012-05-10 Pb, Cd, Hg, Cr(VI): all items Not Detected Alkaline Ceramic Ball Test Report Korea Testing & Research Institute (KTR) · 2012-05-10 Pb, Cd, Hg, Cr(VI): all items Not Detected COOKING STONE Anion Test Report Korea Far-Infrared Association (KIFA) · 2013-08-22 Anion concentration: 1,124 ions/cc COOKING STONE Far-Infrared Test Report Korea Far-Infrared Association (KIFA) · 2013-08-22 Emissivity 0.924 · Radiant energy 3.72×10² W/m²·µm (at 40°C)