# EDGAR Filing Document

**Accession Number:** 0001857392
**File Stem:** 0000897101-23-000082
**Filing Date:** 2023-2
**Character Count:** 29059
**Document Hash:** 44bcef4268ab51dc449bc369aee3f5fc
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000897101-23-000082.hdr.sgml**: 20230214

**ACCESSION NUMBER**: 0000897101-23-000082

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230214

**DATE AS OF CHANGE**: 20230214

**GROUP MEMBERS**: CMI OXBOW PARTNERS, LLC , LOREN A. UNTERSEHER

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SkyWater Technology, Inc
- **CENTRAL INDEX KEY:** 0001819974
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **IRS NUMBER:** 371839853
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0101

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-93459
- **FILM NUMBER:** 23627368

**BUSINESS ADDRESS:**
- **STREET 1:** 2401 EAST 86TH STREET
- **CITY:** BLOOMINGTON
- **STATE:** MN
- **ZIP:** 55425
- **BUSINESS PHONE:** 952-851-5200

**MAIL ADDRESS:**
- **STREET 1:** 2401 EAST 86TH STREET
- **CITY:** BLOOMINGTON
- **STATE:** MN
- **ZIP:** 55425

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CMI Acquisition, LLC
- **DATE OF NAME CHANGE:** 20200803
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CMI Oxbow Partners, LLC
- **CENTRAL INDEX KEY:** 0001857392
- **IRS NUMBER:** 371850486
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** C/O OXBOW INDUSTRIES, LLC
- **STREET 2:** 4450 EXCELSIOR BOULEVARD, SUITE 440
- **CITY:** MINNEAPOLIS
- **STATE:** MN
- **ZIP:** 55416
- **BUSINESS PHONE:** 612-850-9481

**MAIL ADDRESS:**
- **STREET 1:** C/O OXBOW INDUSTRIES, LLC
- **STREET 2:** 4450 EXCELSIOR BOULEVARD, SUITE 440
- **CITY:** MINNEAPOLIS
- **STATE:** MN
- **ZIP:** 55416

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**SCHEDULE 13G<br> (Amendment No. 1)\***

**Under the Securities Exchange Act of 1934**

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| |
|:---|
| &nbsp;&nbsp;**SkyWater Technology, Inc.** |
| (Name of Issuer) |
| &nbsp;&nbsp;**Common Stock, par value $0.01 per share** |
| (Title of Class of Securities) |
| &nbsp;&nbsp;**83089J108** |
| (CUSIP Number) |
| **December 31, 2022** |
| (Date of Event Which Requires Filing of this Statement) |

---

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

◻ Rule 13d-1(b) <br> ◻ Rule 13d-1(c) <br> 🗹 Rule 13d-1(d)

\*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

**Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.**

---

| | |
|:---|:---|
| **CUSIP No. 83089J108** | **13G** |

---

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| | | | | |
|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;**1** | names of reporting persons | names of reporting persons | names of reporting persons | names of reporting persons |
|  | CMI Oxbow Partners, LLC | CMI Oxbow Partners, LLC | CMI Oxbow Partners, LLC | CMI Oxbow Partners, LLC |
| &nbsp;&nbsp;**2** | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;(a) ◻<br> (b) ◻ |
| &nbsp;&nbsp;**3** | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only |
| &nbsp;&nbsp;**4** | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization |
|  | &nbsp;&nbsp;&nbsp;&nbsp;Delaware | &nbsp;&nbsp;&nbsp;&nbsp;Delaware | &nbsp;&nbsp;&nbsp;&nbsp;Delaware | &nbsp;&nbsp;&nbsp;&nbsp;Delaware |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**5** | &nbsp;&nbsp;&nbsp;&nbsp;sole voting power | &nbsp;&nbsp;&nbsp;&nbsp;sole voting power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;– | &nbsp;&nbsp;&nbsp;&nbsp;– |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**6** | &nbsp;&nbsp;&nbsp;&nbsp;shared voting power | &nbsp;&nbsp;&nbsp;&nbsp;shared voting power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**7** | &nbsp;&nbsp;&nbsp;&nbsp;sole dispositive power | &nbsp;&nbsp;&nbsp;&nbsp;sole dispositive power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;– | &nbsp;&nbsp;&nbsp;&nbsp;– |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**8** | &nbsp;&nbsp;&nbsp;&nbsp;shared dispositive power | &nbsp;&nbsp;&nbsp;&nbsp;shared dispositive power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 |
| &nbsp;&nbsp;**9** | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person |
|  | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 |
| &nbsp;&nbsp;**10** | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | ◻ |
| &nbsp;&nbsp;**11** | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) |
|  | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> |
| &nbsp;&nbsp;**12** | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* |
|  | &nbsp;&nbsp;&nbsp;&nbsp;OO | &nbsp;&nbsp;&nbsp;&nbsp;OO | &nbsp;&nbsp;&nbsp;&nbsp;OO | &nbsp;&nbsp;&nbsp;&nbsp;OO |
| (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. |

---

---

| | |
|:---|:---|
| **CUSIP No. 83089J108** | **13G** |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;**1** | names of reporting persons. OF ABOVE PERSONS (ENTITIES ONLY). | names of reporting persons. OF ABOVE PERSONS (ENTITIES ONLY). | names of reporting persons. OF ABOVE PERSONS (ENTITIES ONLY). | names of reporting persons. OF ABOVE PERSONS (ENTITIES ONLY). |
|  | Oxbow Industries, LLC | Oxbow Industries, LLC | Oxbow Industries, LLC | Oxbow Industries, LLC |
| &nbsp;&nbsp;**2** | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;(a) ◻<br> (b) ◻ |
| &nbsp;&nbsp;**3** | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only |
| &nbsp;&nbsp;**4** | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization |
|  | &nbsp;&nbsp;&nbsp;&nbsp;Minnesota | &nbsp;&nbsp;&nbsp;&nbsp;Minnesota | &nbsp;&nbsp;&nbsp;&nbsp;Minnesota | &nbsp;&nbsp;&nbsp;&nbsp;Minnesota |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**5** | &nbsp;&nbsp;&nbsp;&nbsp;sole voting power | &nbsp;&nbsp;&nbsp;&nbsp;sole voting power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;– | &nbsp;&nbsp;&nbsp;&nbsp;– |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**6** | &nbsp;&nbsp;&nbsp;&nbsp;shared voting power | &nbsp;&nbsp;&nbsp;&nbsp;shared voting power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**7** | &nbsp;&nbsp;&nbsp;&nbsp;sole dispositive power | &nbsp;&nbsp;&nbsp;&nbsp;sole dispositive power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;– | &nbsp;&nbsp;&nbsp;&nbsp;– |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**8** | &nbsp;&nbsp;&nbsp;&nbsp;shared dispositive power | &nbsp;&nbsp;&nbsp;&nbsp;shared dispositive power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 |
| &nbsp;&nbsp;**9** | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person |
|  | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 | &nbsp;&nbsp;&nbsp;&nbsp;21622393 |
| &nbsp;&nbsp;**10** | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | ◻ |
| &nbsp;&nbsp;**11** | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) |
|  | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> |
| &nbsp;&nbsp;**12** | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* |
|  | &nbsp;&nbsp;&nbsp;&nbsp;OO | &nbsp;&nbsp;&nbsp;&nbsp;OO | &nbsp;&nbsp;&nbsp;&nbsp;OO | &nbsp;&nbsp;&nbsp;&nbsp;OO |
| (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022. |

---

---

| | |
|:---|:---|
| **CUSIP No. 83089J108** | **13G** |

---

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| | | | | |
|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;**1** | &nbsp;&nbsp; names of reporting persons<br> I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). | &nbsp;&nbsp; names of reporting persons<br> I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). | &nbsp;&nbsp; names of reporting persons<br> I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). | &nbsp;&nbsp; names of reporting persons<br> I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). |
|  | Loren A. Unterseher | Loren A. Unterseher | Loren A. Unterseher | Loren A. Unterseher |
| &nbsp;&nbsp;**2** | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;check the appropriate box if a member of a group\* | &nbsp;&nbsp;(a) ◻<br> (b) ◻ |
| &nbsp;&nbsp;**3** | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only | &nbsp;&nbsp;&nbsp;&nbsp;sec use only |
| &nbsp;&nbsp;**4** | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization | &nbsp;&nbsp;&nbsp;&nbsp;citizenship or place of organization |
|  | &nbsp;&nbsp;&nbsp;&nbsp;United States of America | &nbsp;&nbsp;&nbsp;&nbsp;United States of America | &nbsp;&nbsp;&nbsp;&nbsp;United States of America | &nbsp;&nbsp;&nbsp;&nbsp;United States of America |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**5** | &nbsp;&nbsp;&nbsp;&nbsp;sole voting power | &nbsp;&nbsp;&nbsp;&nbsp;sole voting power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;14521<sup>(b)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;14521<sup>(b)</sup> |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**6** | &nbsp;&nbsp;&nbsp;&nbsp;shared voting power | &nbsp;&nbsp;&nbsp;&nbsp;shared voting power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;21622763 | &nbsp;&nbsp;&nbsp;&nbsp;21622763 |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**7** | &nbsp;&nbsp;&nbsp;&nbsp;sole dispositive power | &nbsp;&nbsp;&nbsp;&nbsp;sole dispositive power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;14521<sup>(b)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;14521<sup>(b)</sup> |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp;**8** | &nbsp;&nbsp;&nbsp;&nbsp;shared dispositive power | &nbsp;&nbsp;&nbsp;&nbsp;shared dispositive power |
| &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: | &nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH: |  | &nbsp;&nbsp;&nbsp;&nbsp;21622763 | &nbsp;&nbsp;&nbsp;&nbsp;21622763 |
| &nbsp;&nbsp;**9** | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person | &nbsp;&nbsp;&nbsp;&nbsp;aggregate amount beneficially owned by each reporting person |
|  | &nbsp;&nbsp;&nbsp;&nbsp;21637284 | &nbsp;&nbsp;&nbsp;&nbsp;21637284 | &nbsp;&nbsp;&nbsp;&nbsp;21637284 | &nbsp;&nbsp;&nbsp;&nbsp;21637284 |
| &nbsp;&nbsp;**10** | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | &nbsp;&nbsp;&nbsp;&nbsp;check if the aggregate amount in row (9) excludes certain shares\* | ◻ |
| &nbsp;&nbsp;**11** | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) | &nbsp;&nbsp;&nbsp;&nbsp;percent of class represented by amount in row (9) |
|  | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;52.0%<sup>(a)</sup> |
| &nbsp;&nbsp;**12** | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* | &nbsp;&nbsp;&nbsp;&nbsp;type of reporting person\* |
|  | &nbsp;&nbsp;&nbsp;&nbsp;IN | &nbsp;&nbsp;&nbsp;&nbsp;IN | &nbsp;&nbsp;&nbsp;&nbsp;IN | &nbsp;&nbsp;&nbsp;&nbsp;IN |
| (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022.<br> (b) Excludes 14,947 shares of common stock underlying restricted stock units scheduled to vest on the date immediately preceding the next annual meeting of the issuer's stockholders. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022.<br> (b) Excludes 14,947 shares of common stock underlying restricted stock units scheduled to vest on the date immediately preceding the next annual meeting of the issuer's stockholders. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022.<br> (b) Excludes 14,947 shares of common stock underlying restricted stock units scheduled to vest on the date immediately preceding the next annual meeting of the issuer's stockholders. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022.<br> (b) Excludes 14,947 shares of common stock underlying restricted stock units scheduled to vest on the date immediately preceding the next annual meeting of the issuer's stockholders. | (a) Calculated based on 41,618,964 shares of common stock outstanding as of November 1, 2022, as reported by the issuer in its quarterly report on Form 10-Q filed with the U.S. Securities and Exchange Commission on November 10, 2022.<br> (b) Excludes 14,947 shares of common stock underlying restricted stock units scheduled to vest on the date immediately preceding the next annual meeting of the issuer's stockholders. |

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| | |
|:---|:---|
| **Item 1.** |  |
| (a) | Name of Issuer |
|  | SkyWater Technology, Inc. |
| (b) | Address of Issuer's Principal Executive Offices |
|  | 2401 East 86<sup>th</sup> Street |
|  | Bloomington, Minnesota 55423 |

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| | |
|:---|:---|
| **Item 2.** |  |
| (a) | Names of Persons Filing |
|  | CMI Oxbow Partners, LLC<br> Oxbow Industries, LLC<br> Loren A. Unterseher |
| (b) | Address of Principal Business Office or, if none, Residence |
|  | c/o Oxbow Industries, LLC |
|  | 4450 Excelsior Boulevard, Suite 440 |
|  | Minneapolis, MN 55416 |
| (c) | Citizenship |
|  | CMI Oxbow Partners, LLC Delaware limited liability company<br> Oxbow Industries, LLC Minnesota limited liability company<br> Loren A. Unterseher Citizen of the United States of America |
| (d) | Title of Class of Securities |
|  | Common Stock, par value $0.01 per share |
| (e) | CUSIP Number |
|  | 83089J108 |

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| | |
|:---|:---|
| **Item 3.** | **If this statement is filed pursuant to §§ 240.13d-1(b), or 240.13d-2(b) or (c), check whether the person filing is a:** |
|  | Not Applicable. |

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| | |
|:---|:---|
| **Item 4.** | **Ownership** |
| (a) | Amount Beneficially Owned |
|  | 21,667,284 shares |
|  | Loren A. Unterseher is President of CMI Oxbow Partners, LLC ("CMI") and Managing Partner of Oxbow Industries, LLC ("Oxbow"), which is the majority member of CMI. As a result, Mr. Unterseher and Oxbow may be deemed to be the beneficial owners of, and to have a pecuniary interest in, shares of common stock held by CMI. Each disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein. |
| a |  |
| (b) | Percent of Class |
|  | 52.0% |
| (c) | Number of shares as to which such person has: |
| (i) | Sole power to vote or to direct the vote |
|  | 14521 |
| (ii) | Shared power to vote or to direct the vote |
|  | 21622763 |
| (iii) | Sole power to dispose or to direct the disposition of |
|  | 14521 |
| (iv) | Shared power to dispose or to direct the disposition of |
|  | 21622763 |

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| | |
|:---|:---|
| **Item 5.** | **Ownership of Five Percent or Less of a Class:** |
|  | If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following ◻. |
| **Item 6.** | **Ownership of More than Five Percent on Behalf of Another Person:** |
|  | Not Applicable. |
| **Item 7.** | **Identification and Classification of the Subsidiary Which Acquired the** |
|  | **Security Being Reported on by the Parent Holding Company or Control Person:** |
|  | Not Applicable. |
| **Item 8.** | **Identification and Classification of Members of the Group:** |
|  | Not Applicable. |
| **Item 9.** | **Notice of Dissolution of Group:** |
|  | Not Applicable. |

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**Item 10. Certification**

Not Applicable.

**SIGNATURE**

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 14, 2023

CMI OXBOW PARTNERS, LLC

By: Oxbow Industries, LLC, its Managing Member<br>

By: <u>/s/ Loren A. Unterseher</u> <br> Name: Loren A. Unterseher<br> Title: President

OXBOW INDUSTRIES, LLC

By: <u>/s/ Loren A. Unterseher</u> <br> Name: Loren A. Unterseher<br> Title: Managing Partner

<u>/s/ Loren A. Unterseher</u> <br> Loren A. Unterseher<u><br></u> 

<br> **JOINT FILING AGREEMENT**

In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a Statement on Schedule 13G and any necessary amendments thereto with respect to the common stock of SkyWater Technology, Inc. and that this Agreement may be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts, all of which together shall constitute one and the same instrument.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of February 14, 2023.

CMI OXBOW PARTNERS, LLC

By: Oxbow Industries, LLC, its Managing Member<br>

By: <u>/s/ Loren A. Unterseher</u> <br> Name: Loren A. Unterseher<br> Title: Managing Partner

OXBOW INDUSTRIES, LLC

By: <u>/s/ Loren A. Unterseher</u> <br> Name: Loren A. Unterseher<br> Title: Managing Partner

<u>/s/ Loren A. Unterseher</u> <br> Loren A. Unterseher