BSL Ultra-Clean HDPE Drums Achieve Sub-10 PPT Metal Ion Leaching in G5-Grade Sulfuric Acid

SHANGHAI, China, August 18, 2026 (EZ Newswire) -- Baoshili Technology (BSL) recently released the results of its metal ion leaching validation conducted on its 200 L ultra-clean HDPE drum using G5-grade (96%) sulfuric acid. After eight months of continuous immersion in G5-grade sulfuric acid, the leaching concentration of each individual metal impurity remained below 10 ppt (parts per trillion), in compliance with the packaging, storage, and transportation requirements for G5-grade high-purity chemicals.

These results demonstrate BSL’s capabilities in raw material formulation and manufacturing process innovation. In addition to maintaining metal ion leaching at the ppt level, BSL’s ultra-clean HDPE drums deliver industry-leading performance in key parameters such as particle release and UV transmittance. To date, BSL has secured nearly 20 proprietary intellectual property rights for the ultra-clean HDPE drum, covering the drum body and related components.

The manufacture of ultra-clean HDPE drums involves significant technical barriers, and only a limited number of companies worldwide are capable of mass production. With continued advances in the core technologies behind its ultra-clean HDPE drums, BSL is rapidly expanding its presence in the high-end chemical packaging market.

BSL continues to expand its portfolio of ultra-clean chemical packaging solutions, with new products — including ultra-pure small-volume containers and photoresist packaging containers — to be introduced in stages.

About Baoshili Technology

Established in 1999 with a registered capital of RMB 50 million, Baoshili Technology — operating legally through Xiamen Baoshili Dustless Technology Co., Ltd. and Baoshili (Shanghai) New Material Technology Co., Ltd. — is a leading manufacturer of high-purity and ultra-clean industrial supplies.

With production facilities in Xiamen and Shanghai, Baoshili specializes in localized alternatives to imported components, including cleanroom wipes, ultra-clean PFA tubing and connectors, and ultra-clean HDPE drums. The company delivers scalable, industrial-grade solutions to global leaders across the semiconductor, display, photovoltaic, and pharmaceutical sectors.

For more information, visit www.bsl-clean.com.

Media Contact

Lotus Huang
lotus@xmbsl.com