Wagner Group tried to buy weapons in Turkey in February – The Washington Post

This is mentioned in The Washington Post article. 

In early February, Wagner personnel “met with Turkish contacts to purchase weapons and equipment from Turkey for Vagner’s efforts in Mali and Ukraine,” one report states, using a variation on the spelling of the group’s name. The report further states that Mali’s interim president, Assimi Goïta, “had confirmed that Mali could acquire weapons from Turkey on Vagner’s behalf.” 

It is not clear from the report whether the Turkish government knew about Wagner's efforts or whether they were successful. A Turkish government representative declined to comment, as well as Mali's embassy in Washington.

"Two other pages from the leaked intelligence file speak to Wagner’s plans for hiring Russian prisoners to fight in Ukraine and note that the Russian military has become dependent on the private soldiers. Like the report on meetings involving Turkey, these cite their sources as coming from “signals intelligence,” a reference to electronic eavesdropping and communications intercepts. Officials generally view those as among the most productive forms of intelligence-gathering, but they are potentially perishable if they are exposed," the article says.

• Wagner PMC founder Yevgeny Prigozhin admitted that the Armed Forces of Ukraine are not retreating from Bakhmut, and there is no question of any Russian offensive in this direction at the moment.