![](https://bisbee.net/wp/wp-content/uploads/2011/08/3396_2_bioteq_tank___low-150x112.jpg)
The end of BioTeQ in Bisbee was announced in a Wall Street Journal press release. Copper from a bioreactor was leached by microbes into a commercial concentrate. Lower copper prices impacted the profitability, as damage from summer rains caused a reassessment between the two companies.