SOREM generates SO4- Radical, which decomposes the contaminating substances in the soil which are polluted by oil and hydrophobic solvents. Compared to the Instant Reaction (Reaction finishes in 1~2 Hours) & Short Duration of OH-Radicals in Hydrogen Peroxide, SOREM reacts immediately and for a duration of 1 week (maximum). After remediation from oil contamination, it can be expected that the function of soil recovers in a shortened time because SOREM leaves Potassic Fertilizer, the nutrition component to the plant.