In April 2017, owing to Peru's increasing importance as a copper supplier to China, Chinalco announced an investment of $1.3 billion to expand copper production after failing to reach its output target last year.
ɪn ˈeɪpɹəl tˈuː θˈaʊzənd sˈɛvəntˌiːn, ˈoʊɪŋ tə pɚɹˈuːz ɪŋkɹˈiːsɪŋ ɪmpˈoːɹtəns æz ɐ kˈɑːpɚ səplˈaɪɚ tə tʃˈaɪnə, tʃaɪnˈælkoʊ ɐnˈaʊnst ɐn ɪnvˈɛstmənt ʌv dˈɑːlɚ wˈʌn.θɹˈiː bˈɪliən tʊ ɛkspˈænd kˈɑːpɚ pɹədˈʌkʃən ˈæftɚ fˈeɪlɪŋ tə ɹˈiːtʃ ɪts ˈaʊtpʊt tˈɑːɹɡɪt lˈæst jˈɪɹ.