Specialty Glass, Inc

This case study describes Specialty Glass, Inc., a privately owned manufacturer in the Pacific Northwest of the United States that produced approximately 30 percent of the global supply of colored sheet glass for lamps and stained-glass windows. The company faced significant environmental and regulatory challenges due to the use of toxic pigments, specifically cadmium oxide used for ruby-red glass, which resulted in hazardous waste and air emission concerns.

• Specialty Glass, Inc. operated as a high-volume, low-margin producer with annual sales of approximately $12 million, employing 160 people. It held a competitive advantage over smaller North American competitors due to its use of continuous furnaces, which required substantial capital investment and high electricity usage, though these costs were mitigated by low electricity prices in the Pacific Northwest.
• The production of ruby-red glass relied on cadmium oxide, a highly toxic chemical. While the manufacture of this glass was banned in Europe via a European Union directive, Specialty Glass remained one of only two U.S. manufacturers producing it, serving markets such as churches in Florida and mosques in North Africa.
• The company generated approximately 15,300 pounds of fine ash and 2,700 pounds of other hazardous waste annually, paying roughly $1.75 per pound (totaling $31,500 per year) for disposal. After an Oregon landfill stopped accepting cadmium, the company had to truck waste to a processor in Arkansas, the only U.S. landfill accepting cadmium-containing ash.
• To address air emission concerns and a "visible plume" of smoke, Specialty installed a furnace baghouse that captured 99.7 percent of toxic particulates. While this met the "best available technology" standard for regulatory compliance, the company remained concerned about future, more restrictive cadmium emission requirements from the local air quality control board.

APA

World Resources Institute (n.d.). Specialty Glass, Inc. https://pdf.wri.org/bell/case_1-56973-261-2_full_version_english.pdf

Chicago

World Resources Institute. Specialty Glass, Inc. n.d. https://pdf.wri.org/bell/case_1-56973-261-2_full_version_english.pdf.

Wikipedia

{{cite report |author=World Resources Institute |title=Specialty Glass, Inc |url=https://pdf.wri.org/bell/case_1-56973-261-2_full_version_english.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{worldresourcesinstitutendspecialty, author = {{World Resources Institute}}, title = {{Specialty Glass, Inc}}, institution = {World Resources Institute}, url = {https://pdf.wri.org/bell/case_1-56973-261-2_full_version_english.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }