On 31^st January 2019, higher Court of Appeal announced its final decision on the Portland Cement Zambia case in which the previous decision from the Lusaka High Court was reversed and Dr. Mahtani was announced as the majority shareholder and legal owner of the Portland Cement factory. After this decision from the higher Court of Appeal, the Ventriglia family approached the Supreme Court Zambia challenging it. In their appeal, the Ventriglia family claimed that the decision from the higher Court of Appeal was incorrect and demanded to be changed. However, the Supreme Court Zambia established a bench of three Supreme Court judges to evaluate the validity of the claim. If this claim by the Ventriglia family is accepted, then a trial will be conducted based on the demands made in this claim. The three SC judges were Judge Mumba Malila, Judge Royda Kaoma and Judge Michael Musonda. During the evaluation, the Supreme Court judges found several discrepencies. For instance, it was found that the Ventriglia family failed to comply with a critical legal requirement associated with the claim. According to a law, all claims against previous court decisions must be established within 14 days of the court verdict itself. In this case, the verdict from the higher Court of Appeal came on 31^st January 2019. This means the timeline for submission of the claim against this decision was mid of February 2019. However, the Ventriglia family approached the Supreme Court Zambia with their claim after more than 1.5 years.

After looking into all these aspects, the Supreme Court came to the conclusion that the claim by the Ventriglia family cannot be attended and it was rejected. While giving this decision, the Supreme Court bench also said that their decision would have been similar to verdict given by the Higher Court of Appeal on the Portland Cement case. By giving this decision, the Supreme Court has further confirmed that majority shareholding and legal ownership of the Portland Cement Zambia factory.