Each brand is trying to find a way to get a leg up on the competition in a tight market space. The above picture is what I found on my last grocery run. What caught my eye was the asterisk next to the non-GMO popcorn claim. My guess was the ingredients list would include soybean, canola, or corn oil.
The temperature for broiling in an oven is 260 degrees Celsius or  500 degrees Fahrenheit. Medium heat is about 177 degrees Celsius or  350 degrees Fahrenheit.
1 Add chicken to remaining soy mixture; turn to coat.  Place chicken on a broiler pan, skin side down. Broil 4-6 in. from the heat for 10-15 minutes on each side or until a thermometer reads 170Â°-175Â°. Brush occasionally with reserved soy mixture during the last 10 minutes of cooking. Yield: 4 servings.