Based on the [YT] sources provided:
The event where China rejected a cargo ship loaded with 300,000 tons of soybeans from Argentina happened in April of this year. The sources establish a timeline that includes events occurring in February and March 2025, and import data up to February 2025. Therefore, "April of this year" in the context of these sources refers to April 2025.
Regarding a newspaper article link, the sources provided are excerpts from the transcript of a YouTube video. They describe the event and provide details about it, but they do not include any links to newspaper articles or other external news sources.