Tata Sons, the investment holding company of the Tata group, has appointed Sunil Sinha as Resident Director, Middle East and North Africa (MENA) region. It will also set up an office in Dubai for the MENA region in collaboration with Tata International. Tata Chemicals has appointed Richa Arora as Chief Operating Officer of consumer products. Arora was previously Founder and Chief Strategy Officer of a boutique consultancy firm Five by Six Consulting. Tata Sons, the holding company of the salt-to-software conglomerate Tata group, has appointed S. Padmanabhan as Executive Chairman of Tata Quality Management Services (TQMS).