What is the fine-grained topic of the following text: President and CEO of Caisse de dépôt et placement du Québec Michael Sabia, who also spoke at the press conference to announce the launch of its G7 investors’ leadership group with Ontario Teachers’, says that initiative is his main focus right now. Only return the topic.
Launch of G7 investors' leadership group by Caisse de dépôt et placement du Québec and Ontario Teachers'