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Humphrey is a Consultant in the CRU Fertilizers team, analysing costs across the industry.

He contributes to the Nitrogen, Phosphate and Potash Cost Reports.

Prior to joining CRU, Humphrey worked as a geologist at a major lead-zinc mine in the Republic of Ireland and at a gold exploration project in Mexico.

He holds an MSc in Geology from Imperial College London and an MSc in Mining Geology from Camborne School of Mines (University of Exeter).

Articles from our industry expert


Potassium Sulphate markets see major price divergence

In recent years, prices in key potassium sulphate markets have diverged on an unprecedented scale. Major additions of secondary capacity in China and Egypt, supply issues...

By Humphrey Knight 16 November 2017