Although I'm married to a Filipina I'm not sure that I'll be much help. Whenever we ship, it's usually the opposite direction and there is a way to do that for a reasonable cost. It is called a balikbayan box. What happens is that the company fills a container with boxes and ships the container to The Philippines 3 or 4 times per year. Doing it this way, the customer can ship as much as they can fit in their 30" X 30" X 30" (I'm guessing the dimensions) box regardless of the weight for ~$60.
Now, going the other way? Well it was pretty expensive to get my MIL to ship me some kapeng barako coffee beans. But I'm sure it would be much more cost-effective to ship an entire container if you have that kind of volume. Other than that, maybe your printer does this for other clients and knows of a cheap way to do it.
Sorry for putting so little help in so many words.
Now, going the other way? Well it was pretty expensive to get my MIL to ship me some kapeng barako coffee beans. But I'm sure it would be much more cost-effective to ship an entire container if you have that kind of volume. Other than that, maybe your printer does this for other clients and knows of a cheap way to do it.
Sorry for putting so little help in so many words.