The difference between the second quarterly report and the semi-annual report lies in the different time span. The second quarterly report is actually the report of the second quarter, and the time span is April-June, while the semi-annual report refers to the report of half a year, and the time span is generally1-June. In addition to the second quarterly report, there are also a quarterly report and a third quarterly report, of which the first quarterly report is the first quarterly report with a time span of1-March, and the third quarterly report is the third quarterly report with a time span of July-September.