On July 4-13, Shizhen and Gan attended the Goldschmidt 2025 Conference in Prague of Czech. Gan chaired a session and gave a talk on BC radiocarbon based on many of our studies. Shizhen delivered orally our recent advance in tire-wear derived chemicals in another session. There were 4 other SKLAET members on the Conference. Zhang Yanlin (章炎麟) cochaired with Gan on the session. It is a nice conference standing the top one in the research areas of geochemistry!