Diamond Fertilisers partners with POLY4 to deliver sustainable farming nutrition to UK farmers. 
Thomas Bell are proud to announce a new partnership with Anglo American’s Crop Nutrients business. This partnership brings together POLY4’s innovative crop nutrition solution with Diamond Fertilisers’ established network and strong connections with UK growers. Together, they will bring a premium fertiliser to market that not only enhances crop performance but also supports long-term soil health and environmental stewardship. 

“Where POLY4 brings the science, Diamond Fertilisers brings the power to deliver it”, said Alison Schofield, Marketing Manager at Thomas Bell. “This partnership ensures UK farmers have access to a proven fertiliser that drives consistent yields, improved nutrient efficiency, is suitable for chloride-sensitive crops and supports sustainable farming practices.”

Scott Yarwood, Area Manager UK/Ireland for Anglo American Crop Nutrients said: “We are incredibly proud to partner with Thomas Bell. Our POLY4 product is ideal for UK farmers and Diamond Fertilisers’ commitment to quality and service makes them an ideal partner to help us expand POLY4’s reach and impact across the UK farming community”.

‍What is POLY4?
POLY4 is a naturally occurring multi-nutrient fertiliser derived from the mineral polyhalite, mined by Anglo American in the UK.
It provides four essential nutrients that are vital for healthy crop growth:
• Potassium (K) – supports yield and quality
• Calcium (Ca) – strengthens cell walls and improves crop resilience       
• Magnesium (Mg) – boosts chlorophyll and photosynthesis
• Sulphur (S) – enhances nitrogen uptake and protein formation

POLY4 releases these nutrients steadily and naturally, improving nutrient use efficiency while maintaining soil structure and fertility.  

Unlocking your farms potential
Good for soil. Great for your farm.A fertiliser you can grow with.

Diamond Fertilisers have long been trusted for their quality and consistency. By integrating POLY4 into our blends, we’ve raised the standard - offering farmers premium nutrition with proven performance across every acre.  

The benefits of POLY4:
• Enhances output
• Unlocks access to nutrients to maximise their use
• Strengthens resilience
• Cares for your soil
• A perfect fit for sustainable farming