Preheat the oven to 350°F and line a baking sheet with parchment paper.
In a large mixing bowl, combine the rolled oats, flour, coconut, brown sugar, and granulated sugar.
In a large saucepan, melt the butter.
Add the light corn syrup and baking soda. Once the mixture foams, remove it from the heat.
Add the dry ingredients to the saucepan and mix with a spatula until combined.
If the dough seems too dry, gradually add 1–2 tablespoons of water until it becomes easy to shape.
Scoop out portions of dough and roll them into balls.
Lightly flatten each ball and place them on the prepared baking sheet about 1 inch apart.
Bake for 12–14 minutes.
Let the biscuits cool on the baking sheet for 10 minutes before serving.