While oil dominates headlines amid the escalating US-Iran conflict, Chinese retail investors are zeroing in on a different concern: peppering listed companies with questions about how the turmoil could disrupt supplies of everything from fertilisers to pharmaceutical products that contain the prized spice saffron. “Given that Iran accounts for more than 90 per cent of global saffron exports, which have now been suspended, will your company continue producing saffron-containing footbath packs and...