Wear trousers or khakis with a collared shirt
Pair the shirt with a well-tailored jacket or blazer. Save the denim trousers for more informal gatherings. Don’t put so much pressure on yourself to fit into a blazer just because the program is tagged corporate.
A crisp well-ironed shirt is way better than a worn out blazer. Go plain or spice it up with a bespoke Ankara shirt. A tie is optional and depends on the kind of shirts you wear.