Heat oven to 350. Mix 1 cup sugar, the margarine, 1 Tbsp grated orange peel and the egg in large bowl. Stir in flour, cocoa, salt, baking powder, and baking soda. Stir in pecans and chocolate chips.
Roll dough into 1-1/2 inch balls. Mix 1/3 cup sugar and 1 tsp grated orange peel. Roll balls of dough in sugar mixture. Place about 3 inches apart on ungreased cookie sheet. Flatten to about 1/2-inch thickness with bottom of glass. Bake 9 to 11 minutes or until set. Cool slightly; remove from cookie sheet.