3341  Secondary Smelting and Refining of Nonferrous Metals

Establishments primarily engaged in recovering nonferrous metals and alloys
from new and used scrap and dross or in producing alloys from purchased
refined metals. This industry includes establishments engaged in both the
recovery and alloying of precious metals. Plants engaged in the recovery of
tin through secondary smelting and refining, as well as by chemical
processes, are included in this industry. Establishments primarily engaged
in assembling, sorting, and breaking up scrap metal, without smelting and
refining, are classified in Wholesale Trade, industry 5093.