August 21 news, the State Intellectual Property Office has information showing that Yunnan Precious Metals New Materials Holding Group Co., Ltd. has applied for a patent titled "A surface-modified lead-free glass powder of Si-Ca-Al for resistance paste and its preparation method." The application publication number is CN122586378A, the application number is CN202610924318.1, the publication date of the application is August 18, 2026, and the application date is June 25, 2026. The inventors are Li Junpeng, Zhang Zhubo, Sun Hu, Li Wei, Zhou Kai, Li Lei, He Zijuan, Gao Qiqiang, and Chen Kaitea. The patent agency is Beijing Gaowo Law Firm, and the patent agent is Wang Xue. Classification number: C03C12/00.

The patent abstract shows that the present invention provides a surface-modified, lead-free Si?Ca?Al glass powder for resistance paste, as well as a preparation method thereof, and belongs to the technical field of resistance paste materials. The invention provides a surface-modified, lead-free Si?Ca?Al glass powder for resistance paste, comprising a glass powder base and a modification layer on the surface of the glass powder base; the modification layer is made of bismuth oxide or tellurium oxide. By constructing a low-melting oxide (bismuth oxide or tellurium oxide) modification layer on the surface of the glass powder, during use in resistance paste sintering, the modification layer softens preferentially, significantly improving sintering flowability and wettability with silver-palladium alloy powder, preventing the glass phase from floating during sintering, and improving the uniformity, density, and re-sintering stability of the film layer structure.

贵研铂业 is a leading company in the domestic precious metals materials sector. Relying on the technological barriers of the entire industrial chain, it focuses on its core precious-metals business and has prominent scarcity and investment value in the industry. The company was established on September 25, 2000 and listed on the Shanghai Stock Exchange on May 16, 2003. Its registered and office location is in Kunming, Yunnan Province.

The company’s principal businesses cover research, development, and production and operation of precious metals and precious metal materials. The industry classification of Shenwan is under Nonferrous Metals – Small Nonferrous Metals – Other Small Nonferrous Metals. At the same time, it is also positioned in three concept sectors: midstream balanced development, hydrogen energy, and energy saving and environmental protection.

In the first half of 2026, 贵研铂业 achieved operating revenue of RMB 22.652 billion. Among four comparable companies in the industry, it ranked 2nd, second only to锡业股份’s RMB 31.573 billion; it was higher than the industry average of RMB 15.003 billion and the industry median of RMB 12.845 billion. In the same period, it achieved net profit of RMB 0.377 billion, ranking 3rd in the industry. After锡业股份 (RMB 1.594 billion) and 华锡有色 (RMB 0.8 billion), it was below the industry average of RMB 0.729 billion and the industry median of RMB 0.588 billion.

The recent patent situation of Yunnan Precious Metals New Materials Holding Group Co., Ltd. is as follows:

Serial number | Patent name | Patent type | Legal status | Application number | Application date | Publication (announcement) number | Publication (announcement) date | Inventor 1 A surface-modified Si-Ca-Al lead-free glass powder for resistance paste and its preparation method | Invention patent | Published | CN202610924318.1 | 2026-06-25 | CN122586378A | 2026-08-18 | Li Junpeng, Zhang Zhengfu, Sun Hu, Li Wei, Zhou Kai, Li Lei, He Zijuan, Gao Qiqiang, Chen Kait tea 2 A Ni-Pd dual-active-site cooperative low-NH method | Invention patent | Substantive examination effective and published | CN202610856630.1 | 2026-06-15 | CN122377490A | 2026-07-14 | Yang Xingxia, Zhao Depeng, Chang Shiying, Yang Kun, Yu Fei, Yang Dongxia, Zhao Yunkun, Xu Shilong 3 A multi-dimensional evaluation method, system, device, and storage medium for performance of remanufactured metal materials | Invention patent | Published | CN202610732146.8 | 2026-05-26 | CN122596739A | 2026-08-18 | Ma Hao, Sun Honghong, Zhang Bu sheng, Liu M anmen, Chen Xujun, Ma Yongfeng, Li Bo, Wang Hua, Wei Yonggang, Wang Xun, Chen Ainlian, Dong Haigang, Li Da, Zhang Xueyou 4 A 3-methoxy-ruthenium carbene catalyst and its preparation method and application | Invention patent | Published | CN202610678740.3 | 2026-05-18 | CN122464922A | 2026-07-28 | Yan Caixian, Chang Qiaowen, Huang Guangying, Li Tianqi, Yu Juan, Jiang Jing, Gao Anli, Tan Yuanmei 5 A method for preparing nickel-titanium–platinum core composite wire | Invention patent | Substantive examination effective and published | CN202610618727.9 | 2026-05-07 | CN122378392A | 2026-07-14 | Wu Zixiang, Li Dinglong, Zheng Tianxu, Fu Quan, Zhu Jianguo, Song Wei, Luo Dong, Wang Chunqin, Liu Yi, Lu Jianmin, Xiong Zhizhi, Luo Jingran, Luo Shujie, Gao Changyan 6 A polishing method for medical-grade metal tubes and its application | Invention patent | Published | CN202610587334.6 | 2026-04-29 | CN122480772A | 2026-07-31 | Wang Jian, Zheng Tianxu, Liu Yi, Fu Quan, Wang Chunqin, Luo Jingran, Wu Zixiang, Luo Shujie, Xiong Zhizhi, Yang Xueli, Meng Lin, Gong Qin, Shi Jian’an, Xu Xiany u 7 A stable 3-amino cyclobutane-1,1-dicarboxy diethyl ester oxalate and its application in preparing 3-(cholic acid pent anilide) cyclobutane-1,1-dicarboxy | Invention patent | Substantive examination effective and published | CN202610571382.6 | 2026-04-28 | CN122356191A | 2026-07-10 | Yang Chongsheng, Yang Zhix, Xu Honggui, Jiang Jing, Chen Xuejiang, Shen Hongya, Zhao Zh idong, Li Ao, Liu Weiping, Gao Anli, Sun Min 8 A purification method for 3-(cholic acid pentanilide) cyclobutane-1,1-dicarboxylic acid | Invention patent | Substantive examination effective and published | CN202610571356.3 | 2026-04-28 | CN122356190A | 2026-07-10 | Yang Chongsheng, Yang Zhix, Chen Xuejiang, Xu Honggui, Jiang Jing, Zhao Zh idong, Shen Hongya, Li Ao, Gao Anli, Sun Min, Liu Weiping, Wang Jingkun 9 A preparation method for a semi-activated platinum (II) catalyst | Invention patent | Substantive examination effective and published | CN202610564142.3 | 2026-04-27 | CN122404422A | 2026-07-17 | Chen Li, Yu Juan, Zhang Chuntao, Chang Qiaowen, Tan Yuanmei, Yan Caixian, Jiang Jing, Gao Anli, Li Tianqi 10 A one-time forming preparation method for AgCuTi brazing filler metal | Invention patent | Substantive examination effective and published | CN202610548594.2 | 2026-04-23 | CN122274511A | 2026-06-26 | Dai Hua, Zhao Fei, Yao Liang, Zhang Jiankang, Yin Junmei, Yang Zhiwei, Zhang Yang 11 A palladium complex and its preparation method and application | Invention patent | Substantive examination effective and published | CN202610488053.5 | 2026-04-14 | CN122059998A | 2026-05-19 | Tan Yuanmei, Yu Juan, Zhang Chuntao, Chang Qiaowen, Feng Yangyang, Chen Li, Yan Caixian, Wang Hongyou, Jiang Jing, Dai Yunsheng, Gao Anli, Li Tianqi 12 A PdBr | Invention patent | Substantive examination effective and published | CN202610486617.1 | 2026-04-14 | CN122079263A | 2026-05-26 | Yu Juan, Chang Qiaowen, Zhang Chuntao, Tan Yuanmei, Yan Caixian, Chen Li, Jiang Jing, Gao Anli, Li Tianqi 13 A preparation method and application of a pre-activated Pd (II)-P catalyst | Invention patent | Substantive examination effective and published | CN202610488059.2 | 2026-04-14 | CN122325513A | 2026-07-03 | Chang Qiaowen, Yu Juan, Zhang Chuntao, Tan Yuanmei, Yan Caixian 14 A finite element analysis method and system for metal wire mesh structures considering slip effects | Invention patent | Published | CN202610463241.2 | 2026-04-09 | CN122433382A | 2026-07-21 | Yang Wenhua, Zhong Wang, Zhang Yiqun, Tan Zhilong, Qin Qingyan, Hu Naigang, Sun Zihan, Li Na 15 A preparation method for cis-diiodo (trans-(-)-1,2-cyclohexanediamine) platinum (II) | Invention patent | Substantive examination effective and published | CN202610453241.4 | 2026-04-08 | CN122301947A | 2026-06-30 | Jiang Jing, Liu Ranran, Zhu Yuanqi, Liu Zhiying, Liu Weiping, Chang Qiaowen, Yu Juan, Gao Anli, Yan Caixian, Tan Yuanmei, Li Tianqi, Kuang Feiping 16 A method for preparing a umbrellaene ruthenium complex and its preparation method and application, and a polymer preparation method via ring-opening isomerization polymerization of an olefin | Invention patent | Substantive examination effective and published | CN202610372320.2 | 2026-03-25 | CN122234112A | 2026-06-19 | Yan Caixian, Yao Mollexin, Chang Qiaowen, Wang Wenxuan, Liu Jin hui, Li Tianqi, Yu Juan, Jiang Jing, Gao Anli, Tan Yuanmei 17 A method and application for phased pre-synthesis of a ruthenium-based conductive phase | Invention patent | Substantive examination effective and published | CN202610362329.5 | 2026-03-24 | CN122224632A | 2026-06-16 | Gan Guoyou, Pang Zhen, Yu Xianglei, Li Junpeng, Qian Zhuo, Li Wei, Sun Hu, Zhu Renlong, Hou Ba isen, Xia Zhiq iang, Zhou Xinyu 18 A preparation method for cis-diiododiamminoplatinum (II) | Invention patent | Substantive examination effective and published | CN202610308662.8 | 2026-03-13 | CN122144806A | 2026-06-05 | Jiang Jing, Liu Zhiying, Liu Ranran, Zhu Yuanqi, Liu Weiping, Chang Qiaowen, Yu Juan, Gao Anli, Yan Caixian, Tan Yuanmei, Li Tianqi, Kuang Feiping 19 A method for preparing ultra-fine crystalline aluminum-silicon-copper target material and its preparation method | Invention patent | Substantive examination effective and published | CN202610183183.8 | 2026-02-09 | CN122012997A | 2026-05-12 | Wen Ming, Li Shiqi, Yang Tianshuo, Tang Ke, Shen Yue, Wang Chuanjun, Xu Yanting, Li Sixie, Tang Qi, Shi Chenqi, … 20 A method for additive manufacturing and application for testing and quality inspection of gold-platinum alloy | Invention patent | Substantive examination effective and published | CN202610175219.8 | 2026-02-06 | CN122210015A | 2026-06-16 | Song Wei, Li Dinglong, Wu Zixiang, Xia Zhiwei, Gong Qin, Meng Lin, Wen Hongrui, Gao Changyan, Zhang Jiao, Liu Yi, Fu Quan 21 A AgCu alloy enhanced with Sb element and its preparation method and application | Invention patent | Substantive examination effective and published | CN202610146936.8 | 2026-02-02 | CN122081713A | 2026-05-26 | Liu M anmen, Zhao Zh idhao, Yang Jie, Li Junyi, Pei Hongying, Yang Anheng, Zhou Wenyan, Wang Zhan, Kang Feifei, Liang Chen, Zhou Zhuangdi, Guo Jichao 22 A Pd-Cu alloy enhanced with Ir element and its preparation method and application | Invention patent | Substantive examination effective and published | CN202610146953.1 | 2026-02-02 | CN122105177A | 2026-05-29 | Liu M anmen, Zhao Zh idhao, Li Junyi, Pei Hongying, Yang Anheng, Zhou Wenyan, Wang Zhan, Kang Feifei, Liang Chen, Zhou Zhuangdi, Guo Jichao 23 A nickel-vanadium alloy target component with good interfacial bonding strength and a bonding method thereof | Invention patent | Substantive examination effective and published | CN202610137775.6 | 2026-01-30 | CN121992347A | 2026-05-08 | Wang Chuanjun, Wen Ming, Li Jingyu, Shen Yue, Xu Yanting, Li S i xie, Shi Chenqi, Tian Jian, Li Shiqi, Tang Qi, Li Mingyu, Luo Yuxi 24 A palladium extraction agent and its application | Invention patent | Substantive examination effective and published | CN202610093904.6 | 2026-01-23 | CN121896462A | 2026-04-21 | Guo Junmei, Bi Xiangguang, Yu Zejin, Zhang Chunxi, Liu Hui, Duan Xia o, Fu Pengfei, Sun Aoxue, Yang Ding, Han Jibiao, Li Yong, Dong Haigang, Lu Jun 25 A platinum extraction agent and its application | Invention patent | Substantive examination effective and published | CN202610094105.0 | 2026-01-23 | CN121896463A | 2026-04-21 | Guo Junmei, Bi Xiangguang, Liu Hui, Sun Aoxue, Yu Zejin, Zhang Chunxi, Duan Xia o, Fu Pengfei, Han Jibiao, Li Yong, Dong Haigang, Lu Jun 26 A method for ultrasonic testing of internal quality of metal sputtering targets | Invention patent | Substantive examination effective and published | CN202610042291.3 | 2026-01-13 | CN121762695A | 2026-03-31 | Shen Yue, Wen Ming, Wang Chuanjun, Huang Tong, Pu Zhihui, Xu Yanting, Wan Jiacheng, Li S i xie, He Yunshuai, Liu Shuming, Yang Dingji 27 A 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Jun, Zhang Jiankang, Xiao Qinyin, Yin Xiang, Yao Liang, Gao Jun, Zhang Anqin, Gao Yang Disclaimer: There are risks in the market; invest with caution. 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