Sigma's CEO Kazuto Yamaki made a statement on Twitter on the current semiconductor shortages:
Thanks for waiting. Not sure which lenses you ordered, but we’ve been continuing the full production. We just couldn’t catch up the demand of some products in Q4 2021. Hope lenses reach you soon. In 2022, supply shortage of semiconductor may affect production of some products. https://t.co/cOrqCHFraL
— Kazuto Yamaki (@KazutoYamaki) January 4, 2022
Via SonyAddict