The sequential increase primarily relates to headcount additions for commercial resources, digital initiatives, restoring variable compensation, and resuming travel.

Jul 22, 2021 / CFO / receipt, needs a key / Mike Kuda, CFO | earnings call 2021-07-22 | transcript 92c6a15f-79a8-491f-bb18-0a508d690607 | chars 10430-10595 | segment 10

The sequential increase primarily is due to an anticipated $1.5 million in litigation expense at Dyna Energetics, investments in digital transformation, resuming business-related travel, and restoring variable compensation.

Apr 22, 2021 / CFO / receipt, needs a key / Mike Kuda, CFO | earnings call 2021-04-22 | transcript be00559e-eee4-4b3e-a427-56228f6a9cbf | chars 7089-7312 | segment 7