Which of the following describes National Treatment among WTO's two main principles? Once a foreign company or product enters a country, it should be treated just like domestic company or product. WTO members must treat nations with the developing country status more favorably. WTO members accept any immigrants as their nationals as long as they have employment. A government can protect domestic companies by imposing favorable rules on domestic firm compared to foreign firms as long as it is lowering the MFN tariff rates.