What is Iran doing in the Strait of Hormuz?

…Tehran on Wednesday announced that the Niovi had been seized because of a private complaint and a subsequent order by relevant judicial authorities, the Irna said, without giving additional details. “Our belief is that the Niovi tanker was seized as part of a legal dispute. In 2020, Niovi was suspected of transporting Iranian oil to China,” said Claire Jungman, chief of staff of the advocacy group United Against Nuclear Iran.