The Metropolis of Chios, Psara and Oinousses runs a welfare programme where volunteers organised by the church cook approximately 540 meals daily, 5 days a week. These meals are distributed to local parishes, where it is then given to those in need, 40% of whom are elders. In 2012, 2013, 2018 and 2020, separately, the Metropolis won food supply grants to feed approximately 300 elderly residents for 12 months.[2]
In April 2020, as president of the Anti-Tuberculosis Association of Chios, Metropolitan Markos of Chios donated €6,000 to a Chios hospital along with an earlier donation of €20,000 towards SARS sampling and nursing infrastructure. This brings the total donated to the hospital to €26,000.[3]