Critical metals like gallium (Ga) and germanium (Ge) hold strategic importance in the development of modern technologies like optoelectronic devices, semiconductors, light-emitting diodes, and many more. The supply of these metals is not assured due to many reasons. Therefore, new sources and efficient recovery techniques needs to be identified. Thus, attention should be drawn to sources with very low concentrations of these metals which are usually neglected. This is due to high concentrations of contaminant metals and very low concentrations of critical metals. Thus, a highly specific, selective and sustainable process is needed. Siderophore assisted technology “GaLIophore” could be a solution. In GaLIophore, siderophore Desferroxamine B (DFOB) is used to selectively adsorb the metals Ga and Ge from industrial wastewater. DFOB is a highly selective molecule and forms a highly stable complex with Ga and Ge. Interaction of Ga and Ge with DFOB are quite unique and different from one other. Complexation of DFOB with Ge is preferred in acidic pH and presence of chloride ion. While Ga complexes with DFOB across the pH 3-9 and is also not affected by the presence of any anion. Furthermore, DFOB can be re-generated by the addition of excess of ethylenediaminetetraacetic acid (EDTA) at pH 3.5. This leads to the recovery of more than 90% of both the metals at the end and makes the process sustainable. Thus, this technology for the first time demonstrated a solution to recover these critical metals from low concentrated systems in a sustainable and eco-friendly manner.