Garlic Chives with Pork Cang Ying Tou

Name: Garlic Chives with Pork (Cang Ying Tou)
Ingredients: 1 tbsp. canola oil; 5 oz. garlic chives or scallions, trimmed and cut crosswise into 1/4″ lengths (about 1 3/4 cups); 3 oz. ground pork; 2 tbsp. dried fermented black beans, soaked for 30 minutes and drained; 1 1⁄2 tbsp. soy sauce; 2 Thai chiles, stemmed and thinly sliced crosswise