In May 2012, CPC acquired approximately 45.49% of the capital stock of the International Airport of Quito (NAIQ), in Ecuador. On December 10, 2015, CCR concluded financially the Share Purchase Agreement and other Covenants involving the acquisition of: (i) 4.5% of the capital stock of Quiport Holdings; (ii) 3.375% of the credits arising from the subordinated debt of Corporación Quiport; and (iii) 50% of the capital stock of ADC&HAS Management Ltd. As a result, CCR now held, indirectly, 50% of Quito International Airport, which is located in a duty-free zone exempt from income tax until 2025. The concession is for 30 years, ending in January 2041. International Airport of Quito was responsible for 3.1% of gross operating revenues in 2019.