🚨 The 2025 OSSGA Operations Tour is almost here!. 🪨 Get access to aggregate sites and supplier operations you wouldn’t normally get to visit for behind the scenes tours. Register now:

🚧 We're hosting our Generic First Line Supervisor training from September 9-11. This training will take you through the essentials to be a successful leader on an aggregate site. Register now! Participation is limited to 25 places: 

🪨 The 2025 OSSGA Operation Tour is almost sold out!. The tour will take place from September 24-25. We're visiting some of the top aggregate sites in the area for behind the scenes access you won't want to miss!. Register now:

🪨 Gravel is everywhere!. Aggregate is the hidden hero of modern life, working quietly behind the scenes to keep our communities healthy, functional and thriving. Learn more at

RT @ONRoadBuilders: Join us and cybersecurity specialists to address emerging threats and sharpen your digital resilience designed for infr….

📋 Our Common Core Training Program is September 4!. This essential training covers the three base modules required for working on an aggregate site. Sign up quickly because there's only 20 spots available!. Learn more and register now:

🏅 OSSGA’s Industry Recognition Awards Program is now open for submissions!. Learn more about the awards and submit your entry at The deadline for submissions is November 7, 2025.

RT @fordnation: With Canada Day just around the corner, we’ve unveiled a giant Canadian flag to mark the occasion on the front of Queen’s P….

Premier Ford left the meeting with a reinforced, rock-solid understanding of the aggregate sector’s contribution to Ontario’s growth, sustainability, and long-term prosperity. We look forward to continuing our work with the Government of Ontario.

Our conversation also provided an important opportunity to reinforce the vital role aggregates play in building and maintaining the province’s infrastructure.

This symbolic gesture reflects the association's appreciation for the Premier’s commitment to protecting Ontario’s economic sovereignty and resource security.

OSSGA Board Chair, John MacKay, presented the Premier with a commemorative rock in recognition of his strong leadership and unwavering stance on the principle that “Canada is not for sale”.

Yesterday, representatives from the Ontario Road Builders'​ Association (ORBA) and the Ontario Stone, Sand & Gravel Association (OSSGA) had the honour of meeting with Premier Doug Ford at Queen’s Park.

"We're proud to stand shoulder to shoulder with ORBA today. The future of Ontario's infrastructure depends on the collaboration between material suppliers and builders—and the government policies that enable us.".

"Our members are the foundation of Ontario's growth, but we're facing real challenges—demand is down, permitting is slow, and uncertainty is high," said John MacKay, Chair of OSSGA and Vice President at Green Infrastructure Partners.

RT @McSweeneyMikeB: Thanks so much @mikeharrisjrpc for visiting @_OSSGA Member @Lafarge_Canada’s Mosport #Quarry. It was the Minister and h….

RT @CanadianPM: Canada’s new Cabinet.

RT @McSweeneyMikeB: @ToddJMcCarthy Understand frustration of stakeholders on Bill 5 however we can no longer take between 7 & 12 years to g….

RT @McSweeneyMikeB: @RobFlackEML Much need investment Minister ans @fordnation. We need #housing and we need it quickly and cost effectivel….

RT @McSweeneyMikeB: Excited to hear @PBethlenfalvy speak about @fordnation and their government’s plan to grow the economy ⁦@_OSSGA⁩ suppo….