Oil based suspension concentrate (I) comprises: (a) at least one agrochemical active agent which is solid at room temperature； (b) at least one penetration promoter； (c) at least one vegetable oil； (d) at least one nonionic and/or anionic surfactant, and (e) optionally at least one additive comprising emulsifiers, antifoams, preservatives, antioxidants, dyes and/or inert fillers. An independent claim is included for the production of (I), by mixing the components (a)-(d) and optionally (e) and optionally milling the obtained suspension.
