Corning Incorporated leads the global market in glass and specialty ceramic substrates, with net sales distributed across various sectors: Telecommunications (29.6%), Electronic mass market (26%), Environment (13%), Life Science (7.1%), and Other (24.3%). Geographically, sales are primarily from Asia/Pacific (51.5%), followed by the United States (32.7%), Europe (11.3%), North America (3%), and Other (1.5%).