A solid foundation for your yield

Name: pH Magnesium Active
Brand: pH

We are the creators of the pH line of highly reactive calcium fertilizers, engineered to correct soil acidity fast and to regenerate the biology that feeds your crops.

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The pH line

Four formulas, one promise: faster, healthier soil

Produced from the purest Polish mineral deposits and finished with modern granulation technology for uniform, effortless application.

pH Calcio Sprint Active

Extra-fast chalk with maximum reactivity

90-99%CaCO₃min 50%CaO100%Reactivity

pH Humus BioActive

Bio-activated organic-mineral complex

75-88%CaCO₃40-50%CaO5-7%Organic matter85-92%Reactivity

pH Calcio Active

Premium-grade highly reactive calcium carbonate

90-96%CaCO₃min 50%CaO80-90%Reactivity

pH Magnesium Active

Finely ground reactive magnesium oxide

min 30%CaO12-18%MgO75%Reactivity

About us

Innovation inspired by nature

Our mission is to deliver solutions that not only regulate soil pH but actively support its biological regeneration, increasing the profitability and efficiency of agricultural production.

All pH fertilizers are produced with advanced granulation technology from carefully selected mineral raw materials sourced from the finest deposits in Poland. Complete control over the process guarantees consistent quality, excellent physicochemical properties and exceptional purity.

Every product is based on natural raw materials, confirmed by laboratory testing and certifications, allowing safe use in certified organic farming systems.

Made from natural rock

Finest Polish deposits, laboratory-verified and certified for organic farming.

In-house logistics

Full control of the supply chain, from loading to delivery at your gate. Hungary is our strategic market, supplied directly all year round.

Partnership on transparency

Long-term relationships built on quality, transparency and mutual trust, for family farms and large enterprises alike.

Part of GROS Group

Agriculture, logistics and international trade, under one roof

The pH brand belongs to GROS Group, a family of companies whose synergy lets us pair high-quality products with reliable logistics and a true partnership approach.