About Us


In the early 1900s, David Tremblay set up a small-scale sawmill operation in Delisle. A few years later, he sold and relocated to Sainte-Monique just north of Alma in Lac-St.-Jean where he bought another sawmill. It was like so many sawmills that dotted the countryside of Quebec in those days; a small-time family operation serving the local community and the surrounding area. Around 1950, David’s son, Thomas-Louis, took over the growing family business. In addition to processing softwoods, the sawmill began working with hardwoods and making specialized products such as blueberry boxes.

In those days, family members were largely responsible for day-to-day operations. They had grown up in the forest and had come to love working with wood. It was normal to see the children working side by side with the father and grandfather during their summer vacation.

Over time, the children would find their own niches in the lumber industry eventually specializing in timber harvesting, sawmill equipment manufacturing and maintenance, and lumber transport. Several of the children formed their own companies and even hired a number of employees.

At the same time, Thomas-Louis started allowing his children to have an ever greater say in the running of the mill. They gradually came to specialize in hardwoods and even managed to get people to recognize the value of a thitherto neglected hardwood: the aspen.

In 1984, Claude and Jean-Paul Tremblay purchased the Audehou sawmill in Lac Bouchette which had been closed several years before. They brought it back online under the name Scierie L.B. Inc. and began specializing in working with aspen.

These two sawmills played a large part in expanding the aspen market. Their production alone represented 22% of all processed aspen wood products produced in Quebec.

Toward the end of the 1980s, the family signed an agreement with Les Produits Forestier T.L.B. Inc., in the Montreal area, for marketing the sawn timber from both mills as wells as sawn aspen from other sawmills in Quebec.  

This sale force helped to develop the timber export market and promoted the new applications for poplar fibre such as pallets, hockey sticks, snowboards, coffins and many other products.

In 1994, Thomas-Louis Tremblay died in an automobile accident at the age of 75. At the time of his death, he was still quite involved in running the family’s sawmills. At this time, Jean-Paul Tremblay took over as President and CEO of the company. 

In 1996, Scierie L.B. Inc. sold the Lac Bouchette mill to Panneaux Chambord Inc. and together with Scierie Thomas-Louis Tremblay put into motion an aggressive fixed asset investment plan to integrate a secondary processing facility into the birch wood sawmilling operation – the first of its kind in Quebec. 

Outside of the few areas of Quebec with a supply of quality birch trees ideal for rotary peeling and milling, few sawmills have specialized in birch, and those that have, have had a limited level of production. Though birch is abundant in the Saguenay–Lac-St.-Jean area, the trees there are of a relatively small diameter and had therefore been largely overlooked as a potential resource.

By this time, Scierie Thomas-Louis Tremblay Inc. was among the largest hardwood sawmills in Quebec and had become the province’s largest single-species hardwood sawmill.

In the summer of 1999, a second phase of improvements were made at Scierie Thomas-Louis Tremblay Inc. to design a robotic vision system to be used in milling and wood processing operations – a first in the history of sawmilling. The company’s state-of-the-art technological advances are a direct result of experience in manufacturing equipment specifically designed for use on hardwoods.

The company’s aim in undertaking these improvements was to reduce wasted wood fibre, improve recovery of top-grade wood, make production quality more consistent, and speed up production while maintaining a high level of quality.

After an attic fire in the mill in 2001, which did not affect any of the equipment, they decided to build a modern plant to house our operations and accommodate future growth.

Les Séchoirs Ste-Monique Inc. was incorporated in May 15, 2002 as a timber seasoning plant for hardwoods and a manufacturing plant for fine components and paneling (tertiary processing). Construction began in the fall of 2002, and the seasoning plant came online in February of 2003. The wood processing facilities were scheduled to be built toward the end of 2003 and to come online early in 2004. This undertaking allowed the company to acquire expertise in hardwood (birch) kiln drying  and set up a tertiary processing facility for birch wood in Saguenay–Lac St.-Jean. In 2006, Scierie Thomas-Louis Tremblay and Séchoirs Ste-Monique were restructured and merged to form Industries T.L.T. We have grown from a small-time family business to one of the most state-of-the-art wood processing facilities in the world. We have more than 125 employees and contract out logging and hauling work to around 225 other people – nearly 350 people total.

Our purchasing policy gives incentives to local buyers, thus contributing to more local jobs in retail and commercial sales and even manufacturing.

Over the years, we have had an impact on the larger world beyond our borders while continuing to play a part in growing the local economy.