• BNS Partnership's combined holding in Lightron Fiber-Optic Devices rose to 21.39% from 20.85%, totaling 24,286,895 shares and share equivalents.
• The Best Partnership acquired convertible bonds representing 787,815 shares on November 6, 2026, driving the increase.
• Voting-share ownership remained unchanged at 23,499,080 shares, or 20.85%.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Lightron Fiber-Optic Devices Inc. published the original content used to generate this news brief via DART, the regulatory disclosure system operated by the South Korea Financial Supervisory Service (FSS) (Ref. ID: 20261113001644), on November 13, 2026, and is solely responsible for the information contained therein.