Aluminium and Caustic soda

Their prices have moved together.

Aluminium (commodity) and Caustic soda (chemical): 1 relationship.

How they are linked

1. Price link: refining input

Cost and price · Weak · Both ways

Bauxite is refined into alumina with hot caustic soda in the Bayer process, so caustic prices affect alumina costs. The chemical is a minor cost next to power, and the proxy is a broad US alkalis index, so correlation is slightly negative (-0.14 monthly).

• -0.14 monthly change correlation
• -0.20 12-month change correlation
• 0.23 fitted elasticity

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