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The year 2023 marks two centuries since the birth of Gillinder Glass’ founder, William Thynne Gillinder. The new year also marks Gillinder’s hundredth year of being incorporated under the name Gillinder Brothers Inc.. In honor of these anniversaries, Gillinder has dug through its physical and digital archives to present the story of Gillinder's first one hundred years. Gillinder History: The First Century is a look of William Gillinder’s journey and the early days of Gillinder Glass. The story explains, Gillinder Glass’ inception was in 1861 when “William Gillinder would purchase the Samuel’s Bottle Factory in Philadelphia, Pennsylvania, and create Philadelphia Flint Glass Works, which would begin the over 160-year history of Gillinder Glass.” Collectors and historians have found many trade names for Gillinder, which have included: William T. Gillinder Glass Factory, Franklin Flint Glass Works, Gillinder & Bennett, Gillinder & Sons, and Gillinder Brothers. Gillinder Brothers was established in 1912 and incorporated in 1923 and has primarily operated out of Port Jervis, New York ever since. Dozens of recently digitized photos can be found on the Photo Gallery Page. View full story HERE. Please submit questions, comments, or additional historical information via email to: Jackie Conklin at: JConklin@GillinderGlass.com Press Contact: Jackie Conklin- Marketing Specialist: jconklin@gillinderglass.com. For other inquiries, please call us at 845-856-5375 or email info@gillinderglass.com.

Gillinder Glass produces a broad variety of glass products manufactured to the most rigid specifications to meet the tough demands of industrial work environment and harsh and hazardous conditions. Depending on the use, hazardous conditions may require glass to be abrasion resistant, thermal shock resistant, liquid resistant, impact resistant, vapor or dust resistant, or explosion resistance to avoid shattering from an internal explosion, particularly important in environments with combustible fumes. Vapor proof glass resists the influx of vapors and gas particles and is generally also liquid resistant. Gillinder Glass is a key supplier in the harsh and hazardous industries with products intended for environments needing vapor tight globes and fixtures with a corrosion and vapor proof aluminum cage. There are several types of vapor proof and waterproof ratings, including IP65, IP66, and IP67, which measure a products water resistance. An IP rating is composed of two numbers. The first number describing the products intrusion protection, or how much it withstands particles entering, which is based on a 0-6 scale. The second number measures the resistance to liquid on a 0-9 scale. These vapor proof globes also offer intrusion protection which is calculated using a system to rate safeguard against dust, particles, or solid objects of certain sizes. These are to ensure any ingress will not damage or impede the performance of internal components with full protection against dust and other particulates, including a vacuum seal, tested against continuous airflow. Gillinder Glass’ clear or colored tempered vapor proof glass is often used for ceiling, pendant, or wall mounted fixtures. A tempered soda-lime glass is generally used and can be produced with multiple finishes in a variety of colors. These “jelly jar” globes are also offered on Gillinderglass.com and include the following open stock options: Gillinder can also manufacture custom sizes, colors, and finishes, such as white enamel (inside), sandblasting, plastic coating, smooth, and inside ribs. Common colors include: amber, aviation blue, opolo, red C, rs green, and traffic green. The chromaticity specifications, measured with CIE A, are as follows: Gillinder’s in-house engineering team precisely test vapor proof glass to confirm chromaticity requirements as well as performing impact and thermal shock resistance tests when needed. As these globes are often used for harsh outdoor locations waterproof requirements also may apply. --- Press Contact: Jackie Conklin- Marketing Specialist: jconklin@gillinderglass.com For other inquiries, please call us at 845-856-5375 or email info@gillinderglass.com References: “The Comprehensive Guide to IP Ratings.” The Comprehensive Guide To IP Ratings | RS Components, https://uk.rs-online.com/web/generalDisplay.html?id=ideas-and-advice%2Fip-ratings.

Join Gillinder Glass at the 2022 LightFair Conference and Trade Show in Las Vegas, Nevada, which is being held at the West Hall of the Las Vegas Convention Center, one of the largest event facilities in the world. The recently renovated Las Vegas Convention Center now features an underground transportation system, the LVCC Loop, making traveling around the vast convention center more efficient. The Las Vegas Monorail travels the Vegas strip in about fifteen minutes. You can purchase tickets here. Annually held, LightFair is the largest architectural and commercial lighting trade show and conference. Discover the latest lighting design products and solutions for future projects. With 46 sessions, the 2022 LightFair Conference will feature five learning tracks, offering a total of 132 CEU credits. Art and Inspiration- explores sources of inspiration that inform design and technology development Design Guidance and Tools- covers the latest energy and building code changes, new design metrics, design and measurement tools, controls and more Evidence-Based Design- focuses on end-user data and techniques used to achieve specific design goal Experiencing Light- explores the influence of light on the human experience and natural ecosystems Technology- explores the newest design tools and software, lighting controls, IoT lighting, 3D print technology and more Gillinder will demonstrate a variety of glass products from industries it supplies to including industrial, architecture, landscape, marine, and custom products. Industrial products that will be on display include sight glass, vapor proof glass, and globes, Architecture products will include Fresnel lenses and refractors for wallpacks. Commercial and residential landscape products including globes, domes, and covers used for pool, spa, walkway, and spot/flood lighting will also be on display. Gillinder Glass will also be presenting new manufacturing capabilities including the addition of a new CNC milling machine to their mold shop. To assist in production efficiencies and meeting customer demand and expectations, Gillinder is advancing its technology with implementing automated equipment in current production processes. Gillinder welcomes its partners Stumpe Glas and IQS NANOPTIQS to LightFair this year with expansion into new product categories. You can visit Gillinder Glass at booth 1616 and find out about the nearly 300 exhibitors here. CONFERENCE DATES: Sunday Jun 19- Thursday Jun 23 TRADE SHOW DATES: Tuesday Jun 21- Thursday Jun 23 --- Press Contact: Jackie Conklin- Marketing Specialist: jconklin@gillinderglass.com For other inquiries, please call us at 845-856-5375 or email at info@gillinderglass.com

In 1865 Gillinder Glass was established, and they opened a glass pressing factory in Pittsburgh, Pennsylvania. This was only forty years after John P. Bakewell invented the first commercial glass-pressing machine. Blackwell’s invention “quickly led to the mass production of glassware and greatly reduced its cost, leading to glassware being available for everyday use.* Today, Gillinder Glass still hand presses every piece of glass they manufacture. Advances in technology and greater customer demand has allowed Gillinder to start utilizing automated equipment for glass pressing and maximizing efficiencies. Glass pieces are generally made by pouring the molten glass into a mold and having a “plunger” pressed into the iron base. Almost all Gillinder’s molds are made from ductile iron, but some may require an A-2 tool steel or stainless steel may be used. Today, as an ISO 9001:2015 certified company, Gillinder’s Port Jervis factory is held to high standards of manufacturing quality and the in-house mold shop is no exception. Gillinder’s mold shop can collaborate with customers in designing new custom molds or refurbishing existing ones. Gillinder Glass has the capability to manufacture with customer’s existing hand pressed molds. Machine pressed molds can be used by making adjustments to be compatible with current equipment. Mold Shop supervisor, Lewis Still, explains, “Molds that run constantly usually need nothing more than a simple polishing, but sometimes they do need repair work. Average life span on mold equipment is about 5 years. After that, the tooling will start to develop what we call “fire cracks” which are stress fractures in the material from constantly being hot and cold.” Molds are housed in a special atmospherically controlled storage area and maintained in pristine condition after each use to ensure consistent production of the highest quality glass. Gillinder also has the ability to do prototyping and programing. In addition to working with almost all current software systems, the mold shop is equipped with: · Fadal Computer Controlled Vertical Milling Center 3016L · Computer Controlled Bridgeport Horizontal Lathe · Bridgeport Series 2 Vertical Milling Machine · LeBlond Horizontal Lathe · TUR 63 Lathe · Welding and Braising Shop (including gas spray welding) Gillinder has created molds for an array of products including headlights, traffic lights, dog food bowls, kitchenware, and even dental cuspidors. In the Spring of 2022, to further expand the Mold Shop’s capabilities, Gillinder is acquiring an additional CNC milling machine. The CNC milling machine precisely cuts molds from various design software to meet customer’s expectations in design and specification. To find out more about Gillinder's mold shop contact: Call (845) 856- 5375 or email info@gillinderglass.com --- Press Contact: Jackie Conklin- Marketing Specialist: jconklin@gillinderglass.com For other inquiries, please call us at 845-856-5375 or email at info@gillinderglass.com

Fond memories of factory tours are commonplace among tourists and locals alike. In addition to Gillinder Glass’ massive manufacturing footprint in Port Jervis, New York, Gillinder also housed a gift shop located in the front of their factory. The historic Gillinder shop was open to the public and attracted historians and glass enthusiasts for twenty years. In May of 2017, Gillinder made the announcement they would be closing the Gillinder store. As Gillinder’s commercial sales grew, so did the need for state-of-the-art testing equipment. This meant, the Gillinder store would be transformed into lab space. Mirroring the bittersweet sentiment of so many Gillinder patrons, Fabien commented, “Thanks for so many memories! Love that little gift shop, but we are so happy and want to extend our congratulatory wishes on such a milestone. This is wonderful news regarding the expansion.” After closing the gift shop, pieces from the Gillinder shop would remain in storage until the 2021 Etsy site launch. Historical reproductions such as the centennial commemorative box, lion head statue, George Washington etched paperweight, and Gillinder Buddha statue would be made available to the public for a limited time. In Spring 2021, through an internship program, Gillinder welcomed Austin Gurda to manage the historical collection of glass pieces. Austin began meticulously sorting hundreds of Gillinder items that had laid in storage for many years. After months of photographing and gathering product details, the Gillinder Etsy site was launched in Fall of 2021. The site has been a hit with customers marveling at the chance to collect pieces of Gillinder’s history. One of many nostalgic Gillinder stories came from Rae after purchasing a Gillinder Glass horsehead bookend to add to her collection. Rae said: “Years ago as a kid in New Jersey, I fell in love with Gillinder Glass. My dad would take me there once a year and buy me something from the shop. I have continued to collect over the years, even after my dad passed away. I was so excited to see the post that some items would be up for sale!... I have added my new purchases to my collection and have my eye on a few more! It was so nice to be able to reminisce about my trips to the shop and spending time with my dad.” The exquisite glass horse bookend was modeled after the 1940s mold and produced after 2011. They are available in white or green and measure 4 ½” in length, 3” in width, are 5 ½” tall, and weigh approximately 2.5 pounds. Other favorite pieces, and factory tour features, included Gillinder's Buddha statue and peacock vases. First produced in the 1930's at Gillinder's Port Jervis factory, the 1990’s reissue of the sought-after Buddha statue has been a Gillinder staple. The peacock vases were iron blow molds, carved by hand using a hammer and chisel. The peacock molds were discontinued in the 1990's. Both historic pieces can be found for sale on Etsy. Austin’s customer service and careful packaging has had customers purchasing again and again. Gillinder’s Etsy site maintains a five-star rating after nearly fifty reviews. After purchasing the “super cute” vintage satin rose colored dog paperweight Jennifer said, “I have ordered from them before and the customer service is the best I have experienced. The items are well packed and I am so impressed with the overall item. I will be ordering again.” The rare glass puppy figurines adorn neck bows and measure approximately 5” tall and come in a variety of colors. They are authentically Gillinder and have “Gillinder Glass” marked on the base. After hundreds of orders and several months overseeing the Etsy site, Austin said of his experience, "So many customers have reached out to share memories about visiting or touring Gillinder as a child with their families!... Our customers are friendly, grateful, and repeat buyers." The collectables are in limited supply and selling quickly. Don’t miss your chance to be a part of Gillinder Glass history, view the full array of products: Etsy.com/shop/GillinderGlass.

Gillinder Glass is refocusing on their product line of sight glass for Industrial applications. Gillinder Glass offers a high-end line of sight glass to its customers offering both standard and specialized sizes. This sight glass is pressed, finished by machine, and tempered to increase the glass’ strength and durability. Sight glass, or gauge glass, is designed for use in applications requiring heat resistant glass, such as laboratory, medical, pharmaceuticals, and the oil and gas industry. Such applications require glass that can be heated to a higher temperature than soda-lime glass is capable of withstanding, therefore, a borosilicate composition is utilized. When sight glass is designed for continuous use, it must be able to withstand temperatures up to 280° C. Based on the application, sight glass must be visually pure and devoid of imperfections. Sight glass can be fitted to a gauge and used to provide visual readings of the level of liquid in a tank, pressure vessel, boiler, or other gauge indicators. Borosilicate glass provides better visual clarity, as greater than 90% is required, and it is highly resistant to thermal shock, as well as being acid, alkaline, and hydraulic resistant. The coefficient of thermal expansion cannot exceed 5,0 ∙ 10-6 ∙ K-1 (see chart for additional specifications). Gillinder Glass’ sight glass has a standard width of 34mm and height of 17mm. Standard lengths include: 140mm, 165mm, 190mm, 220mm, 250mm, 280mm, 300mm, 320mm, 340mm, 370mm, 400mm, and 420mm. Sight glass is prominently found in industrial applications with extreme temperature or chemical conditions. Gillinder Glass serves the industrial lighting markets, inclusive of harsh and hazardous which makes this an ideal accompaniment to Gillinder Glass’ product portfolio. Gillinder Glass is excited to offer this essential product category to it expanding customer base. To find out more about options or acquire samples contact: Christina Jansure at (724) 541- 0239 or CJansure@Gillinderglass.com --- Press Contact: Jackie Conklin- Marketing Specialist: jconklin@gillinderglass.com For other inquiries, please call us at 845-856-5375 or email at info@gillinderglass.com

The architectural magazine designing lighting, included Gillinder Glass’ NEW product category; IQ Linear as one of its Top 10 Must See Products being exhibited at this year’s Lightfair in NYC. Designing lighting, the EdisonReport affiliate, focuses on the business of lighting design. The bi-monthly online magazine is filled with original content, interviews, and innovative lighting designs. The latest edition features the articles on street lighting, the dawn of invisible light, and UV disinfection technologies, along with the latest news and trends happening at Lightfair. The EdisonReport’s Top 10 Must See Products at Lightfair features the IQ Linear line of lighting optics. Gillinder’s IQ Linear is a family of flat optical elements with very fine microrelief surface structures that offer high definition lighting distribution with a flat piece of optic. Designed for use in linear LED fixtures, the finely calculated nano-structures are designed for optimum functionality and are replicated by direct embossing into the PMMA substrate. Readily available in a broad range of light distributions and material dimensions. Specific custom configurations are also available upon request. Gillinder looks forward to providing demonstrations of this great product during Lightfair October 27th- 29th at booth #2214. To read the October edition of Designing Lighting: CLICK HERE. --- Press Contact: Jackie Conklin- Marketing Specialist: jconklin@gillinderglass.com For other inquiries, please call us at 845-856-5375 or email at info@gillinderglass.com

Gillinder Glass - First Time Exhibitor at Lightfair 2021 Port Jervis, NY, August 11, 2021 - Taking place at the Javits Center in the heart of New York City, LightFair is the must-attend architectural and commercial lighting event of the year. Starting October 27th, attendees can expect enhanced programming and improved amenities, along with a re-imagined layout and strict adherence to the latest health and safety guidelines. As a new Lightfair exhibitor, Gillinder Glass will be showcasing its innovative and custom-engineered pressed, molded, flat, and optical glass solutions. Available glasses include: clear or colored, heat resisting borosilicate, soda-lime crystal, infrared, UV transmitting, and other specialty compositions. Gillinder serves multiple industries including industrial and commercial markets, architectural and restoration projects, harsh and hazardous as well as aerospace, marine, and landscape applications. Gillinder’s testing and engineering departments are state-of-the-art with continuous glass composition development, advanced tempering and annealing capabilities, as well as optical design and simulation capabilities. As an ISO 9001:2015 compliant company, Gillinder’s manufacturing processes are maintained at the highest quality levels. Gillinder Glass will also be introducing some of their European partners, including its newest collaborations with Nanoptiqs; with a special presentation of new technologies. Gillinder has expanded their product line to include IQ Linear, a family of flat optical elements from Nanoptiqs. These microrelief surface structures offer high-definition light distribution achieved by a single flat optic. Available in a broad range of light distribution options, sizes can be easily modified to best match fixture performance requirements with minimum impact on optical function. Gillinder’s partnerships provide unique specialty lighting and glass designs for its customers through innovative manufacturing processes. Be sure to visit Gillinder in the New Exhibitor Pavilion at booth #2214. This dedicated show space offers curated tours and attendee giveaways with an emphasis on new product introductions. To attend for free register HERE. Press Contact: Jackie Conklin- Marketing Specialist; jconklin@gillinderglass.com For other inquiries, please call us at 845-856-5375 or email at info@gillinderglass.com

Gillinder Glass has expanded their product offering to include IQ Linear, a family of flat optical elements with very fine microrelief surface structures offering high-definition light distribution achieved by a single flat optic. Gillinder Glass is collaborating with IQS Nanoptiqs to represent and introduce this state-of-the-art technology to the North American market. The IQ Linear product line presents unique solutions with the production of transmissive and reflective optics. The collection offers flat diffractive optical elements with very fine nanostructures designed for optimum functionality. Light distribution parameters include Down-light, Single & Double-asymmetric with narrow and broad peaks, and Batwing. The thin & attractive design delivers optical precision and performance with ease of assembly. IQ Linear can be utilized in a vast array of applications including office & industrial, retail, architectural & general lighting, with potential in entertainment, aircraft & automotive. Compatible with a wide range of LED’s, the lightweight properties of its PMMA substrate offer material and energy cost savings. These innovative optics provide luminaire manufactures with new design techniques, including miniaturization and precise light management. Available in a broad range of light distribution options and material dimensions. Sizes can be easily modified to best match fixture performance requirements with minimum impact on optical function. Gillinder Glass will work with your team to design custom configurations to meet your product needs. We welcome you to contact our team today at info@gillinderglass.com to discuss how this technology can provide lighting improvement for your specific application or project. --- Press Contact: Jackie Conklin- Marketing Specialist: jconklin@gillinderglass.com For other inquiries, please call us at 845-856-5375 or email at info@gillinderglass.com

Gillinder Glass continues to expand with new product development projects through R & D work brought forth by existing and new customer bases. Product design work has become a focus for the Gillinder Glass team and collaborating with clients through their R & D process and assist in designing new products for launch. Implementing design concepts, custom details, and new glass compositions to meet customer needs is a specialty for Gillinder and their team of experienced engineers. The Gillinder Glass Manufacturing facility incorporates an in-house mold and design shop to facilitate new production or refurbishing of molds. Customers benefit from internal capabilities to assist in development of the product design. Special collaboration with our mold makers ensures designing superior quality parts that meet customer specifications can be produced with the most economic value and competitive advantage. Each set of customer molds are propriety property and warehoused in an atmospherically controlled storage area. After each use, molds are inspected and maintained to ensure consistent production of the highest quality glass. Through the R & D process, there are various requirements for product testing and performance metrics. Gillinder’s fully equipped R & D, Technology and Quality Control Lab assist in these efforts in evaluating newly designed products through all development stages. Examples of testing equipment include a Refractometer to measure and identify the refraction index, and Spectroradiometer to measure chromaticity and intensity in shaped glass. Gillinder’s team of engineers will collaborate and offer design change options to enhance performance, quality characteristics, and production efficiencies for optimum development. Custom designed gauges ensure adherence to critical tolerances and consistently produced quality products. Gillinder Glass continues to lead the industry in the manufacturing of pressed and molded technical glass solutions. Customers recognize the value of a hands-on approach, domestic partnership, and minimal lead times Gillinder offers in this crucial age for accurate and confident sourcing. New product development, custom design work, and glass innovations make Gillinder Glass the trusted source for your next glass design project. ### Press Contact: Christina Jansure, VP of Sales – Industrial/Commercial Markets For any inquiries, please call us at 845-856-5375 or email at info@gillinderglass.com.