Industry · Form 5500 business code 212320
Sand, Gravel, Clay, & Ceramic & Refractory Minerals Mining, & Quarrying: retirement plans
Plans whose sponsor entered this principal business activity code on Form 5500.
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances. The business code is chosen by the filer from the list in the Form 5500 instructions.
58 retirement plans in sand, gravel, clay, & ceramic & refractory minerals mining, & quarrying with 100 or more participants filed Form 5500 for plan year 2024 (46 defined contribution, 12 defined benefit). All Form 5500 pension filers in the group reported 110,976 participant records and $8.84B in net assets.
The median defined contribution plan held $69,832 per participant, well above the national median of $53,031, and its employer put in $3,497 per active participant (national: $2,174). Among plans reporting Schedule C compensation the median was $152 per participant against $123 nationally.
Employers contributed $313M and participants $346M during the year, and the plans paid out $889M in benefits.
In 2009 the same group numbered 60 plans with $1.89B; by 2024 it was 58 plans (down 3%) and $8.84B (up 368%). From plan year 2023 the 100-participant line counts participants with account balances, which moved many plans to the short form.
Medians compared with all US plans
| Median plan, plan year 2024 | Industry: DC | US: DC | Industry: DB | US: DB |
|---|---|---|---|---|
| Net assets per participant | $69,832 | $53,031 | $86,702 | $86,234 |
| Employer contributions per active participant | $3,497 | $2,174 | $14,305 | $10,244 |
| Schedule C compensation per participant | $152 | $123 | $700 | $344 |
| Schedule C compensation, share of net assets | 0.28% | 0.26% | 0.77% | 0.42% |
| Administrative expenses per participant | $147 | $116 | $738 | $527 |
Medians across plans with 100 or more participants (44 DC and 12 DB plans with a Schedule H here). Fee medians cover plans reporting an amount. DC: defined contribution, such as 401(k) and 403(b). DB: defined benefit pension.
Distribution of DC plans
| Measure | 25th percentile | Median | 75th percentile | Plans |
|---|---|---|---|---|
| Net assets per participant | $49,009 | $69,832 | $91,088 | 44 |
| Employer contributions per active participant | $2,243 | $3,497 | $4,831 | 43 |
| Schedule C compensation per participant | $91.68 | $152 | $303 | 43 |
| Administrative expenses per participant | $89.27 | $147 | $286 | 43 |
Trend by plan year
| Plan year | Plans 100+ | Participants | Net assets | Employer contributions | Participant contributions | Median DC assets / participant | Median DC Sch. C / participant |
|---|---|---|---|---|---|---|---|
| 2024 | 58 | 110,976 | $8.84B | $313M | $346M | $69,832 | $152 |
| 2023 | 58 | 108,702 | $8.11B | $305M | $315M | $62,796 | $129 |
| 2022 | 62 | 104,806 | $7.02B | $270M | $294M | $46,022 | $132 |
| 2021 | 66 | 111,022 | $8.80B | $311M | $278M | $55,769 | $122 |
| 2020 | 65 | 104,753 | $7.93B | $389M | $254M | $53,338 | $99.84 |
| 2019 | 61 | 104,896 | $7.17B | $312M | $253M | $51,288 | $116 |
| 2018 | 53 | 97,662 | $5.45B | $265M | $226M | $46,735 | $108 |
| 2017 | 49 | 95,063 | $6.00B | $376M | $208M | $46,505 | $93.71 |
| 2016 | 54 | 95,268 | $5.26B | $200M | $189M | $50,312 | $86.18 |
| 2015 | 53 | 96,666 | $4.86B | $215M | $170M | $40,275 | $65.57 |
| 2014 | 49 | 93,108 | $4.69B | $197M | $155M | $47,989 | $57.43 |
| 2013 | 52 | 88,275 | $4.46B | $167M | $136M | $43,638 | $49.40 |
| 2012 | 53 | 84,010 | $3.88B | $170M | $125M | $39,890 | $41.47 |
| 2011 | 55 | 70,070 | $2.92B | $161M | $85.6M | $33,194 | $41.00 |
| 2010 | 56 | 68,879 | $2.82B | $133M | $89.8M | $37,702 | $34.21 |
| 2009 | 60 | 53,035 | $1.89B | $91.0M | $46.3M | $33,538 | $27.16 |
Plan year is the year in which the plan year began. The drop in large plans from 2023 follows a rule change: the 100-participant line now counts participants with account balances, so many plans moved to the short form.
Provider share
Service provider organisations named most often on the Schedule C of the 57 plans on this page's list, by number of plans. A plan usually names several providers.
Largest plans
The 40 largest by participants of 57 plans with a page on this site.
| Plan | Sponsor | State | Type | Participants | Net assets | Per participant | Employer / active | Sch. C / participant |
|---|---|---|---|---|---|---|---|---|
| CRH Americas 401(k) Plan | CRH | GA | DC | 55,484 | $4.79B | $86,312 | $2,973 | $27.75 |
| Martin Marietta Pension Plan | Martin Marietta Materials, Inc. | NC | DB | 16,206 | $1.26B | $77,905 | $2,889 | $281 |
| Martin Marietta Savings and Investment Plan | Martin Marietta Materials, Inc. | NC | DC | 11,214 | $1.07B | $95,277 | $2,661 | $61.41 |
| Missouri Aggregates 401(k) Plan | Farmer Holding Company, Inc. | MO | DC | 2,858 | $83.1M | $29,092 | $2,281 | $189 |
| U.S. Silica Retirement Savings Plan | U.S. Silica Company | TX | DC | 2,593 | $215M | $82,921 | $4,760 | $80.57 |
| Covia Retirement Savings Plan | Covia Holdings LLC | OH | DC | 2,169 | $247M | $113,938 | $4,907 | $93.88 |
| Imerys USA 401(k) Plan | Imerys USA Inc. | GA | DC | 2,027 | $310M | $152,830 | $7,011 | $161 |
| Coronado Coal LLC 401(k) Profit Sharing Plan | Coronado Coal LLC | WV | DC | 1,562 | $75.7M | $48,463 | $3,928 | $113 |
| Carmeuse Lime, Inc. 401(k) Plan | Carmeuse Lime, Inc. | PA | DC | 1,269 | $198M | $155,978 | $7,035 | $128 |
| Atlas Sand Company, LLC 401(k) Plan | Atlas Sand Company, LLC | TX | DC | 1,165 | $13.0M | $11,136 | $1,162 | $42.89 |
| Retirement Plan for Employees of Carmeuse Lime, Inc. and Subsidiaries | Carmeuse Lime, Inc. | PA | DB | 1,142 | $103M | $90,356 | — | $1,771 |
| Edw. C. Levy Co. Retirement Income Plan | Edw. C. Levy Co. | MI | DB | 1,124 | $124M | $110,135 | $21,127 | — |
| Strata Corporation 401(k) | Strata Corporation | ND | DC | 960 | $59.4M | $61,823 | $446 | $142 |
| Carmeuse Lime, Inc. 401(k) Plan for Bargaining Unit Employees | Carmeuse Lime, Inc. | PA | DC | 908 | $80.4M | $88,522 | $3,717 | $152 |
| Eucon Corporation Retirement Benefit Program | Eucon Corporation | ID | DC | 812 | $57.0M | $70,140 | $3,134 | $393 |
| Covia Holdings Corporation Pension Plan | Covia Holdings Corporation | OH | DB | 747 | $57.6M | $77,138 | $8,543 | $541 |
| Imerys 401(k) Plan for Bargaining Employees | Imerys USA Inc. | GA | DC | 746 | $49.9M | $66,901 | $3,739 | $101 |
| Redmond, Inc. 401(k) Retirement Plan | Redmond, Inc. | UT | DC | 596 | $32.9M | $55,164 | $2,275 | $207 |
| U.S. Silica Company Retirement Plan | U.S. Silica Company | TX | DB | 566 | $69.0M | $121,828 | $19,658 | $2,183 |
| Dolese Pension Plan | Dolese Bros. Co. | OK | DB | 566 | $38.4M | $67,792 | — | $145 |
| Jobe Materials, LP 401(k) Plan | Jobe Materials, LP | TX | DC | 553 | $19.6M | $35,360 | $1,596 | $310 |
| L. G. Everist, Inc. 401(k) Plan | L.G. Everist, Incorporated | SD | DC | 478 | $34.7M | $72,575 | $2,204 | $158 |
| Badger Mining Corporation 401(k) Savings Plan | Badger Mining Corporation | WI | DC | 452 | $76.1M | $168,432 | $4,851 | $282 |
| Black Mountain Management, LLC 401(k) | Black Mountain Management, LLC | TX | DC | 402 | $10.7M | $26,705 | $1,807 | $104 |
| 401(k) Plan for Foxrock Ranch, LLC | Foxrock Ranch Holding Company, LLC | TX | DC | 392 | $7.3M | $18,568 | $2,433 | $98.38 |
| Rogers Group Inc. & Its Affiliates Retirement Plan | Rogers Group, Inc. | TN | DB | 345 | $64.2M | $185,973 | — | $738 |
| HC Services LLC 401(k) Plan | HC Services LLC | TX | DC | 343 | $17.5M | $51,156 | $8,169 | $282 |
| Smart Sand, Inc. Retirement Plan | Smart Sand Inc. | IL | DC | 318 | $17.4M | $54,726 | $3,405 | $793 |
| Retirement Plan for the Employees of Iluka Resources Inc. | Ilkua Resources Inc. | VA | DB | 261 | $14.3M | $54,669 | $23,077 | $662 |
| Dan Gernatt Gravel Products Incorporated Savings and Security Plan | Dan Gernatt Gravel Products, Inc. | NY | DC | 256 | $26.6M | $104,090 | $1,296 | $194 |
| Benevento Companies 401(k) Plan | Benevento Sand and Stone Corp. | MA | DC | 250 | $12.7M | $50,840 | $2,623 | $33.36 |
| Haydon Holdings, LLC and Subsidiaries Profit Sharing Plan | Haydon Holdings, LLC | KY | DC | 245 | $24.2M | $98,785 | $5,566 | $329 |
| P.W. Gillibrand Company Tax-Deferred Savings Plan | P.W. Gillibrand Co., Inc. | CA | DC | 243 | $25.2M | $103,775 | $4,572 | $297 |
| R. W. Sidley, Inc. Employees' Retirement Plan | R.W. Sidley, Inc. | OH | DB | 240 | $19.9M | $83,048 | $43,407 | $1,004 |
| Eden Stone Co., LLC Employee Retirement Savings Plan | Eden Stone Co., LLC | WI | DC | 238 | $17.5M | $73,687 | $1,218 | $364 |
| Orion Pacific Holdings Corp. 401(k) Plan | Orion Pacific, Inc. | TX | DC | 238 | $13.1M | $54,876 | $1,024 | $31.71 |
| R.W. Sidley, Inc. 401(k) Plan and Trust | R.W. Sidley, Inc. | OH | DC | 231 | $9.9M | $42,902 | $2,987 | $69.38 |
| Pattison Company, LLC 401(k) Profit Sharing Plan | Pattison Company, LLC | IA | DC | 219 | $9.9M | $45,279 | $2,731 | $147 |
| Gila River Sand and Gravel Corporation 401(k) Plan | Gila River Sand and Gravel Corpo | AZ | DC | 209 | $10.7M | $50,963 | $4,614 | $81.58 |
| Independence TX, LLC 401(k) Plan | Independence TX, LLC | TX | DC | 206 | $1.0M | $4,921 | $2,186 | $18.17 |
By plan size
By state
Questions and answers
How many retirement plans are there in sand, gravel, clay, & ceramic & refractory minerals mining, & quarrying?
58 plans with 100 or more participants filed Form 5500 for plan year 2024, out of 72 pension plans on the full form. Smaller plans file Form 5500-SF and are counted separately where shown.
What is the typical 401(k) balance in sand, gravel, clay, & ceramic & refractory minerals mining, & quarrying?
The median defined contribution plan reported $69,832 in net assets per participant (middle half of plans: $49,009 to $91,088); nationally it was $53,031. This is a plan-level average that includes former employees, not a typical person's balance.
What do employers contribute in sand, gravel, clay, & ceramic & refractory minerals mining, & quarrying?
The median defined contribution plan received $3,497 in employer contributions per active participant, against $2,174 nationally. Plans with no employer contribution are included at zero.
What are average 401(k) fees in sand, gravel, clay, & ceramic & refractory minerals mining, & quarrying?
Among defined contribution plans that report any Schedule C compensation, the median was $152 per participant and 0.28% of net assets (nationally $123 and 0.26%). Schedule C leaves out fund expense ratios and fees the employer pays, so it understates total cost.
Where does this come from?
Form 5500 annual reports in the EBSA research files, with filings received through 24 Aug 2026. Medians are computed by this site across plans with 100 or more participants.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Totals count every pension plan on the full form; medians and the plan list cover plans with 100 or more participants. See the methodology.