Investigating the abundances of SO₂ on WASP-107 b’s evening and morning limbs. We performed a χ² comparison between our observed limb spectra and model spectra with varying SO₂ abundance. Panel (A) shows the evening-limb spectrum from NIRCam F444W and MIRI LRS truncated to points within prominent SO₂ features, with all models consistent within the 68% confidence level. Panel (B) shows the same for the morning-limb spectrum, with the points excluded from this calculation due to strong overlapping cloud absorption in MIRI plotted in gray. Panel (C) shows the full results of these tests, plotting the calculated χ² value, relative to the minimum, as a function of the input SO₂ abundance for the evening- (orange) and morning-limb (blue) cases. The corresponding confidence intervals based on J. V. Wall & C. R. Jenkins (2012) are plotted as horizontal lines. For reference, we also show SO₂ abundances previously inferred from the limb-combined spectrum in the literature.