When can China-Laos Railway recover its investment?

Do you want to ask the question "When will China-Laos Railway recover its investment cost?"? ? The situation is to recover the investment cost within 23 years.

China-Laos Railway is an electrified railway connecting Kunming, Yunnan, China and Vientiane, Laos. It was built by China in accordance with the first-class national railway standards, and it is estimated that the cost will be recovered within 23 years. It is the first transnational railway invested, built and jointly operated by China and directly connected with China railway network.