NPK fertilizer produced by Pupuk Kaltim consists of two types, namely NPK Blending and NPK Fusion. NPK is made in various compositions according to the needs of plants and soil types. This type of fertilizer contains three macro nutrients that are needed by plants, namely N, P and K.

NPK Pelangi consists of 2 (two) types, namely NPK Blending and NPK Fusion. NPK Pelangi blending type is produced by mechanical blending process, and comes from high quality raw materials such as urea granules as a source of N, DAP (Diammonium Phospate) and RP (Rock Phospate) as P2O5 sources, and KCL Flake as a source of K2O, as well as fillers in the form of Mg and Ca so that the granules are colorful.

NPK Pelangi fertilizer consists of two types, namely NPK Blending and NPK Fusion. The Blending-type NPK Pelangi is produced through a mechanical blending process and formed from high quality raw materials i.e. urea granules, DAP (Diammonium Phospate) and KCL Flake, as well as fillers such as Mg and Ca so that the granules are colorful.

While the Fusion type of NPK Pelangi is produced through a steam granulation process so that it has homogeneous fertilizer granules derived from high-quality raw materials such as urea prill as a source of N, RP (Rock Phospate) as a source of P2O5, and KCL powder as a source of K2O contained in one granule. The advantage of NPK Pelangi is that it can be formulated very flexibly according to customer needs, and is proven to increase crop yields.

Pupuk Kaltim markets NPK for the subsidized sector under the brand name NPK Phonska and NPK Pelangi special formula for cocoa. While for the non-subsidized sector, it is marketed under the brand name NPK Pelangi and NPK Pelangi Jos.