# Ammonium sulphate and Coking coal

Their prices have moved together.

Source page: https://www.materialinsights.org/links/ammonium-sulphate-and-coking-coal/

[Ammonium sulphate](https://www.materialinsights.org/chemicals/ammonium_sulphate/) (chemical) and [Coking coal](https://www.materialinsights.org/energy/coking_coal/) (energy): 1 relationship.

## How they are linked

### 1. Price link: by-product

*Cost and price · Strong · Both ways*

Coke ovens for steelmaking recover ammonia from oven gas as ammonium sulphate, notably in China and India. The coal proxy moves with the fertiliser proxy at 0.22 monthly and 0.74 yearly, partly through the shared energy cycle.

- **0.22** monthly change correlation
- **0.74** 12-month change correlation
- **0.43** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.