42 Technical consulting in the field of engineering, namely, reducing sulfur and sulfur-containing compound from hydrocarbon streams being liquid, gas, natural gas, petroleum and petrochemical products; technological research in the field of reducing sulfur and sulfur-containing compound from hydrocarbon streams being liquid, gas, natural gas, petroleum and petrochemical products; engineering in the field of reducing sulfur and sulfur- containing compound from hydrocarbon streams being liquid, gas, natural gas, petroleum and petrochemical products; products development consulting in the field of reducing sulfur and sulfur-containing compound from hydrocarbon streams, being liquid, gas, natural gas, petroleum and petrochemical products; industrial design in the field of reducing sulfur and sulfur-containing compound from hydrocarbon streams being liquid, gas, natural gas, petroleum and petrochemical products; preparation of engineering drawing, technical documentation and reports in the field of engineering, namely, reducing sulfur and sulfur- containing compound from hydrocarbon streams being liquid, gas, natural gas, petroleum and petrochemical products