上海季明环保设备有限公司和上海季明环保工程有限公司，是一家集研发、设计、加工制造、安装调试于一体的高科技民营环保企业。成立于2009年，注册资金分别是2000万元和5000万元。技术发明人杨计明先生，其发明的“城市生活垃圾快速化、无害化、无剩余化、资源循环利用化、产业化”处理技术，简称垃圾不落地“LJ五化”处理技术，是公司的核心技术，是在国际上处理生活垃圾领域的高科技领先技术。
该技术成功应用于云南省罗平县、建水县、山西省屯留县、襄垣县、辽宁海城腾鳌镇、贵州赤水市等地的垃圾综合处理厂后，各地均取得了明显的经济效益和社会效益，该技术帮助地区实现了垃圾无害化、减量化、资源化的处理目标，为地区创建国家卫生城市，园林绿化城市、环保模范城市做出了重大贡献。专家们一致认为：该技术以垃圾处理垃圾，符合循环经济发展要求，代表了国际垃圾处理事业的发展方向。
公司设备制造基地上海龙阳机械厂，固定资产1.3亿元，职工180人，拥有4个机械加工车间，厂房总面积22000平方米，配备大型机械设备120余台套，主要有龙门刨床、卧式万能铣床、数控卧式镗床、平面磨床、摇臂钻床等，可加工各种成套环保设备，年产值达2亿多元。
Shanghai Jiming environmental protection equipment co.,ltd and Shanghai Jiming environmental protection engineering co., ltd are high-tech private environmental companies, which professionally constructs disposal projects and manufacture equipments. They were established in 2009 and the registered capitals are 20 million yuan and 50 million yuan.Chairman Yang Ji-ming researches and develops the“rapid, harmless, non-residual, resource recycling, and industrialization”processing technology, is called short for garbage does not fall to the ground five technologies of “LJ” garbage disposal. It is the core technology of company, as well as the leading high-tech technology in the field of household garbage disposal around the world.
This technology is successfully applied in Luoping county, Yunnan province、Jianshui county, Shanxiprovince、Tunliu county, Liaoning province、Xiangyuan county，Liaoning province,、Haicheng, Guizhou province、Tengao county，Liaoning province、Chishui city，Guizhou province and so on. The technology help the region achieve the target of garbage disposal which are harmless, reduction, resource oriented. It also help the area to be the national health city and made a significant contribution for these areas to be landscapes of the city, environmental protection model cities.The experts all agreed that: garbage does not fall to the ground five technologies of “LJ” garbage disposal is accord with the requirements of the development of circular economy and represents the development direction of the garbage disposal industry.
The equipment manufacturing base of our company is Shanghai Longyang machinery factory. It has￥130 million in fixed assets, 180 employees, and four machine workshops. The total area of the plant is 22,000 square meters, equipped with 120 sets of large machinery and equipment, such as planer, horizontal universal milling machine, CNC horizontal boring machine, surface grinder, and radial drilling machine which can manufactures various sets of environmental protection equipments.The factory‘s annual output value is more than￥200 million.