Saudi Arabia's Tabuk Pharmaceutical has signed a contract with Moderna to sell and distribute its COVID-19 vaccine in the Kingdom. The Riyadh-based company, a unit of Tadawul-listed Astra Industrial Group (AIG), has signed an exclusive service agreement with Moderna Switzerland, it said in a stock exchange filing on Sunday. Tabuk said the value of the deal was difficult to determine "since it is dependent on the level of supply and ...