Pork brisket grillers at Costco

Shopping at Costco this afternoon and came across a new product called Pork brisket grillers (enhanced with up to a 10% solution ...) The label depicted what looked to be a thin, triangular piece of pork.
Until today I was totally unaware that pigs had briskets.
Anyone have any experience with this new product?

Picked some up today at Costco. Of the 5 pack I did 3 with salt/pepper/olive oil and 2 with soy, ginger, garlic, sesame oil.

Grilled them per label (4-5 minutes/side) and they were delicious!