I don’t think anyone cares where their coca cola is from and the airline will probably stock where it is cheaper or when it’s needed.
Coca Cola cares since depending on the particular situation, producing locally can make the remove the extra cost of having duties imposed on their products if they are imported.
That essentially brings to light the case of Arajet since legally it’s a Dominican company with headquarters in the DR. Coca Cola made in the DR isn’t an import for them, but Coca Cola made in the USA can be. That can affect the final price they pay fior the same Coca Cola, if made in one placeover another they could see a higher profit margin.
This isn’t just Coca Cola or products that Arajet csn sell on board. Take for example Toyota Camry. Yes, Toyota id a Japanese brand and technically Toyota cars are Japanese, however if you buy a Camry in the USA it isn’t imported from Japan but rather made in the USA in one of the southern state. This could also be the same for the DR sincd just about every Camry in the DR is imported from the USA. Those Camry’s made in the USA are not subjected to import duties since they aren’t imports into the USA.