MEXICO CITY (S&P Global Ratings) Feb. 1, 2022--S&P Global Ratings today said that its ratings on Mexico-based petrochemicals producer Alpek S.A.B. de C.V. (Alpek; BBB-/Stable/--) remain unchanged following the company's announcement that it's acquiring Octal Holding SAOC (Octal; not rated) for about $620 million. In our opinion, this acquisition will allow Alpek to continue strengthening its existing product portfolio by reinforcing its polyester (PTA/PET/rPET) business division through the acquisition of Octal's PET sheet business segment. In our view, this transaction is aligned with Alpek's business risk profile. It follows the company's strategy to continue improving its core business in the polyester division by continuing to diversify its product offerings to satisfy solid demand in the consumer end-industries such as food