BYD does not belong to the seven conventional field is what

What BYD does not belong to the seven conventional fields is the field of new energy vehicles. The seven conventional fields are oil and gas, petrochemical, metallurgy, building materials, energy, transportation and information technology. BYD, however, is a Chinese company specializing in the research, development and manufacturing of new energy vehicles, mainly producing electric vehicles, hybrid vehicles and pure electric buses. Therefore, it does not belong to one of the seven conventional fields.