In our recent coverage of US Tariffs Hitting China Video Surveillance, there have been questions about different scenarios such as a non-Chinese company manufacturing in China and a Chinese company manufacturing outside of China. Would tariffs apply in these circumstances?
Tariffs are applied according to country of origin, not company of origin. Country of origin forms the core of the US' Harmonized System of tariffs. (See CBP document here.)
How do you determine a product's "country of origin"? The WTO agreement on rules of origin, which the US is party to, says: "for the country to be determined as the origin of a particular good to be either (1) the country where the good has been wholly obtained or, (2) when more than one country is concerned in the production of the good, the country where the last substantial transformation has been carried out".
Therefore, non-Chinese companies manufacturing in China are still affected by the new tariffs. For example, GM makes some cars in China that it exports to the US, and recently confirmed to USA Today that those cars are subject to the tariffs.
However, because of the country of origin system, if Hikvision manufactures products in India that are then shipped to the US from India, those products are considered Indian imports, not Chinese ones. So they would not be affected by the China tariffs.
However, if it's overwhelmingly clear that Hikvision is only making very cosmetic changes to cameras 'manufactured' in India, and there is no "substantial transformation" taking place in India at all, the US could determine the products to effectively be made in China and still slap tariffs on them, even if they are shipped out of India. (See page 9 of CBP document.)