You can subscribe to 21st Century Daily through two methods: subscribing at the local post office or calling the subscription hotline of 21st Century Daily’s distribution department. 21st Century Daily’s English newspaper has a postal code of 1-193 for mailing. It is published every Wednesday with a total of 50 issues per year. 21st Century Student English Newspaper has different postal codes depending on the grade level: primary school 1-349, junior high school 1-343, grade 8 1-344, grade 9 1-345, grade 10 1-346, grade 11 1-347, and grade 12 1-348. It is published weekly, with separate publications for primary school, grade 8, grade 9, grade 10, grade 11, and grade 12.