Meanwhile, stir together orange marmalade, soy sauce, vinegar, mustard, and sesame oil in a small saucepan. Bring to a simmer over medium, and cook, stirring often, until slightly thickened and reduced to about 1/2 cup, about 8 minutes. Set aside. Toss green beans with chili-garlic sauce and remaining 1 tablespoon canola oil, 1/2 teaspoon salt and 1/4 teaspoon pepper in a large bowl.