How does a Kanpur tannery count the chrome and chemicals it buys?
Basic chromium sulphate, fatliquors, dyes and other chemicals bought for tanning are Scope 3 category 1 purchased goods. Use kilograms from the invoices and a factor from the supplier or a named database, with the source on each line.
Keep it traceable
Record kg per chemical from each invoice.
Note the factor, its unit and where it came from.
Keep chemicals separate from hides, which are their own purchased-goods line.
What stays in Scope 1 and 2
Boiler fuel and generator diesel are Scope 1; grid electricity is Scope 2. Effluent sent to the common treatment plant is Scope 3 category 5.
What Senseible does here
Senseible reads the energy invoices behind the making stage into a fingerprinted Scope 1 and 2 record, and keeps material invoices on the Scope 3 trail. Material factors come from your supplier or a named database and are labelled with their source, so the product figure can be traced line by line.
Sources: GHG Protocol Corporate Value Chain (Scope 3) Standard, GHG Protocol Corporate Standard
Last reviewed 2026-10-21.