canada-wrigleys

Question

I wanted to ask for a while already, whether all wrigley products sold in Canada are also kosher. I did some research and called them and they told me that,as does the manufacturer in the US, they are required to list all the ingredients. However, when it says 'artificial' flavouring and 'artificial' colours, it does not list which ones, does that make a difference? secondly, is it correct to assume that, similar to the US, we can rely on wrigleys canada that they in fact list all there ingredients, because of the consequences they face if they do not? thirdly, they told me that they ship there products to the USA, does that pose any problem?