Our paper entitled “Significant Effect of Mg-pressure-controlled Annealing: Non-stoichiometry and Thermoelectric Properties of Mg2-δSi1-xSbx” has been published in Phys. Chem. Chem. Phys. Non-stoichiometry of Mg2−δSi1−xSbxcontrolled via Mg-pressure-controlled annealing has significant influence on the carrier concentration and other thermoelectric properties.