Core Viewpoint - The company is currently in the pilot testing phase for its high-purity metal materials, specifically focusing on the production of 7N ultra-pure metals as intermediates, which are not for sale [1] Group 1 - The company has successfully prepared 7N ultra-pure products of tellurium, cadmium, and indium [1] - The company is in the process of connecting with downstream customers for product trials [1] - Future production will be scaled up based on the progress of pilot testing and market conditions [1]

Group 1 - The core idea of the research is to identify environmental factors that accelerate biological aging, revealing that smoking, cadmium, and lead are significant contributors to accelerated aging [1][7][13]. - The study utilized two main research tools: exposome analysis and epigenetic clocks to assess the relationship between environmental chemicals and aging [4][5][6]. Group 2 - The exposome encompasses all environmental exposures from conception to death, influencing gene expression and aging speed [4]. - The epigenetic clocks measure biological age and health risks, with the second generation predicting health risks and the third generation measuring the speed of aging [5][6]. Group 3 - High levels of cotinine, a marker for tobacco exposure, correlate with increased biological aging, with each standard deviation increase in cotinine accelerating the death risk clock by 1.40 years [10][11]. - Cadmium is identified as the primary environmental factor accelerating biological aging, with each standard deviation increase in serum cadmium leading to significant increases in both death risk clocks [14][16]. Group 4 - Lead exposure is linked to accelerated aging, with each standard deviation increase in blood lead levels resulting in notable increases in death risk clocks [20][21]. - Interestingly, exposure to certain toxic chemicals like dioxins and PCBs was found to correlate with a decrease in epigenetic aging, suggesting a complex relationship between exposure and biological age [22][23]. Group 5 - The study highlights the importance of socioeconomic status and dietary choices in influencing aging speed, with higher income and better food choices associated with slower biological aging [26][27]. - The findings suggest that individuals can manage their aging process by making informed lifestyle choices, such as quitting smoking and diversifying their diet [28][29].

Core Viewpoint - The National Certification and Accreditation Administration (CNCA) will conduct international capability verification activities in the fields of food, water quality, and steel materials testing in 2025 to enhance technical capabilities and promote standardization and result connectivity [2][3]. Group 1: Capability Verification Projects and Participation Requirements - The verification activities will include projects such as the determination of lead, cadmium, and chromium in rice, and the determination of chloramphenicol in shrimp, among others [3][4]. - Relevant testing institutions are encouraged to actively participate in these capability verification projects [4]. Group 2: Timeline and Other Matters - The timeline for the verification activities includes registration from May to July 2025, sample preparation and distribution from August to September 2025, feedback on test results in October 2025, preliminary technical analysis report by the end of January 2026, and results publication by the end of March 2026 [7][8]. - Participating institutions must complete a registration form and adhere to the requirements set by the implementing organizations [6][7]. Group 3: Specific Testing Methods and Sample Information - For the rice testing project, various national and international standards will be utilized, including GB 5009.12-2023 for lead determination and GB 5009.15-2023 for cadmium [10][11][13]. - The shrimp testing project will follow standards such as ISO 13493:2021 for chloramphenicol content determination [15]. - The water testing project will employ methods like ISO 11732:2005 for ammonium nitrogen determination and ISO 15586:2003 for cadmium [17][18]. - The steel testing project will utilize standards such as ISO 24476:2024 for oxygen determination and ISO 15351:1999 for nitrogen content [20].