Controlled release of active ingredients from particulate materials is achieved through the use of a matrix or core-shell system. This strategy relies on the porosity, solubility or erosion characteristics of the matrix formulation to ensure that the active ingredient is slowly released through the outer coating. Coating Place can formulate and manufacture controlled release particles ranging from near and below 30μm to 1cm and above. Release rates can be modified to meet any requirement: complete release delayed to an appropriate time, sustained release for a required length of time or sustained release for a required time after a specific delay period. The release can be governed through a variety of means such as changes in pH, temperature or solvent, as well as matrix dissolution rate or porosity. Coating Place can apply multiple active ingredients and numerous controlled release components to achieve the release rate you desire.