Natural cocoa is largely inedible and is virtually unobtainable retail. If someone is claim their product is “natural” they are lying. Cocoa beans are largely inedible unless you doing something unnatural to them.
Furthermore, there is nothing special about Netherlands when it comes to cocoa (there might have been 400 years ago, but not today). The leading cocoa producers are in West Africa (even though the product is indigenous to Central America), and it is processed globally.
I suggest buy whatever chocolate products in your home country have a good hecksher, and ignore puff talk about “natural” or “Dutch” or “Swiss”.