RE: Financial Times article22 Apr 2019 14:48
2.
But behind artificial embankments a team of Sirius workers and contractors have cut a vertical hole as wide as a fairground Ferris wheel 60 metres into the ground. The concrete-lined chasm will eventually house the submerged head of a shaft that Sirius will use to access a massive deposit of polyhalite 1,500 metres below the ground.
The company will use another shaft to extract the fertiliser, which will be loaded into a skip and hoisted on to a conveyor belt system 350m from the surface. From here it will start a journey to Redcar via a 37km underground tunnel, which Sirius decided to build to lessen the environmental impact of the project.
The polyhalite will then be processed and shipped to customers in the US, China and Brazil to spread on crops.
“This is a once in a lifetime opportunity for a mining engineer,” said Graham Clarke, operations director at Sirius. “It’s a chance to show the world we can still build big, complex mines in the UK.” The resource discovered by Sirius could support more than 100 years of mining.
If all goes to plan Sirius will start extracting polyhalite in 2021 and hit 10m tonnes a year of production by 2024. An expansion to 20m tonnes a year is planned but the company will need additional approvals from National Park UK.
Sirius has secured commitments to supply up to 8.2 tonnes a year of output from the mine © Ian Forsyth/FT
Polyhalite, from the Latin “many salts”, combines four of the six macronutrients essential to plant growth: calcium, magnesium, potassium and sulphur.
Sirius said it could be used straight or blended with other fertilisers. One of the attractions of polyhalite, which will be sold under the brand name Poly4, is that it offers a cheaper alternative to speciality products such as sulphate of potash. It also has a low chloride content, which is better for plants and the environment.
“I think there is a market, and one big enough to be economical?.?.?.?though probably not as big as Sirius estimates,” said Berenberg analyst Rikin Patel, who expects the company to secure the $3bn of debt funding.
“Whether this happens in line with previous guidance remains to be seen?.?.?.?it could easily slip into May although this wouldn’t be an issue.”
To date, Sirius has secured commitments — known as offtake agreements — to supply up to 8.2 tonnes a year of output from the mine, where it hopes to deliver more than 1,000 permanent jobs.