Oil-separating chemicals; oil-purifying chemicals; industrial chemicals; flocculants; water purifying chemicals; additives, chemical, to drilling muds; chemical intensifiers for paper; agricultural chemicals, except fungicides, weed killers, herbicides, insecticides and parasiticides; horticulture chemicals, except fungicides, herbicides, insecticides and parasiticides; chemicals for forestry, except fungicides, herbicides, insecticides and parasiticides