For businesses, they will pretty much always look for ways to increase their profit margins. Even more with public companies that have shareholders. So of course companies are going to look to other countries where production is a lot cheaper. I do think it's exploitation. The workers in those countries are used to working in poor conditions and receiving low pay. Since the companies know this, they know they're able to increase their profit margins even more by having poor working environments for their workers and paying them ridiculously low wages. They probably do this because they know that the workers won't retaliate. If that were to happen in the US, then there would be boycotts and union strikes.