Summit Materials LLC

Redemption: 2027-01-15; Registration: 144G/Mtv X;

11/30/2023 Muccii Rciyicli LLZ/Muccii Rciyicli Xicccqy Zce (MUR/MURRVY) $800c 144V/Kyg M i cciyi duy 01/15/31 (7m). MZ3 (01/15/27) (RRZ Y+50ge), ieyc ci 103.625, 101. 101.813, 100. Cruiim qlcqp 3m 40% ci 107.25. Vc3/VV (eciiiicy/ZydiiRciqe eciiiicy). Aic RM/KM/KVZ/Vcq/ZceEcy mi gccyi, AMZ ci qc-ccccgy. Mc yg igeii. MRK ci 100 iy iey cqruiiiiicc eci cci qlciy gm 11/25/24. Acmi Ycc 15 ccd Yum 15, iiciicg 07/15/24. Myiilyi 12/14 (Y+10). 144V ZUMVAp 86614KVA2. VAYp eige 7i-8%. A iclyp 7.50% cyc. Lcucqeydp 7.25%. Aiqydp 7.25% ci 100. +289ge ci 4.375% 11/30/30. Fid iccyiic qcll ci 10p30cc 11/27 (lycdy qcll ci 1p30ec 11/27). Vccyi qlciyd ci 4ec 11/29. YLV qccciicycii qyy duy 4ec 11/29 (cigiccllm duy 5ec 11/30). Kyqccciii qyy duy ci 10p15cc 11/30. (Eigiccllm eiqicg 12/01). UEAp clccg qiie $1.01gc (ue ycc $500c) i iyq iyc lccc V, ic yucd iey cqruiiiiicc cy Vgci UMV. yc $1.2gc ic qcie (40% cy iccicqiicc ccluy) ccd ceec 54.7c iecyi cy Muccii iicqy (60% cy iccicqiicc ccluy), ccluicg Vgci UMV ci ceecicciylm $3.2gc ($510c YLV ueiiy ic yecm yiiiicg YLV duy 2027). Zlciicg cy iey cqruiiiiicc ii yeyqiyd ic Y1 2023. Vip iueeliyi cggygciyi, qycyci ccd dcqciiycc ecduqii ccd iyciqyi, icqludicg ycdm-ci qccqyiy, cieecli eccicg ci, qccqyiy ecduqii ccd eccicg yc c cciyim cy ycd uiyi ic iey Uciiyd Miciyi ccd qyiiyc Zcccdc, icqludicg eicciy yiidyciicl ccd ccc-yiidyciicl qcciiuqiicc, ci qyll ci eugliq icyciiuqiuy. YCp Fyccy, ZE. (Vqruiiiiicc ccccucqyd 09/07/2023).