# EDGAR Filing Document

**Accession Number:** 0001819438
**File Stem:** 0001193125-23-019144
**Filing Date:** 2023-1
**Character Count:** 30445
**Document Hash:** 04fc6fc1323a8b2f9215a47c51965306
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-019144.hdr.sgml**: 20230130

**ACCESSION NUMBER**: 0001193125-23-019144

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

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230130

**DATE AS OF CHANGE**: 20230130

**GROUP MEMBERS**: ANDREW HAUGHIAN

**GROUP MEMBERS**: CHRIS ERICKSON

**GROUP MEMBERS**: MONOC CAPITAL LTD.

**GROUP MEMBERS**: PANGAEA PARTNERS LLC

**GROUP MEMBERS**: PANGAEA VENTURES III LLC

**GROUP MEMBERS**: PSEE VENTURES LLC

**GROUP MEMBERS**: PURNESH SEEGOPAUL

**GROUP MEMBERS**: VICAP LLC

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ESS Tech, Inc.
- **CENTRAL INDEX KEY:** 0001819438
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-91696
- **FILM NUMBER:** 23568366

**BUSINESS ADDRESS:**
- **STREET 1:** 26440 SW PARKWAY AVE.
- **STREET 2:** BLDG. 83
- **CITY:** WILSONVILLE
- **STATE:** OR
- **ZIP:** 97070
- **BUSINESS PHONE:** (855) 423-9920

**MAIL ADDRESS:**
- **STREET 1:** 26440 SW PARKWAY AVE.
- **STREET 2:** BLDG. 83
- **CITY:** WILSONVILLE
- **STATE:** OR
- **ZIP:** 97070

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ACON S2 Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200728
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Pangaea Ventures Fund III, LP
- **CENTRAL INDEX KEY:** 0001579326
- **IRS NUMBER:** 274533103

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

**BUSINESS ADDRESS:**
- **STREET 1:** 5080 N 40TH ST, UNIT 105
- **CITY:** PHOENIX
- **STATE:** AZ
- **ZIP:** 85018
- **BUSINESS PHONE:** 4808814602

**MAIL ADDRESS:**
- **STREET 1:** 5080 N 40TH ST, UNIT 105
- **CITY:** PHOENIX
- **STATE:** AZ
- **ZIP:** 85018

------

------

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

------

**SCHEDULE 13G** 

**Under the Securities Exchange Act of 1934** 

**(Amendment No. 2)\*** 

------

## ESS Tech, Inc.
**(Name of Issuer)** 

**common stock, par value $0.0001 per share** 

**(Title of Class of Securities)** 

**26916J106** 

**(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)

☒ Rule 13d-1(c)

☐ 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 in 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).

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Pangaea Ventures Fund III, LP

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,292,493 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.4% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; PN

(1) Consists of shares held directly by Pangaea Ventures Fund III, LP. Pangaea Ventures Fund III, LP is managed by
its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by Vicap LLC, PSee Ventures LLC and Monoc Capital Ltd., which are owned and controlled by Chris Erickson, Purnesh Seegopaul and Andrew
Haughian, respectively.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Pangaea Ventures III LLC

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,292,493 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.4% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; OO

(1) Consists of shares held directly by Pangaea Ventures Fund III, LP. Pangaea Ventures Fund III, LP is managed by
its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by Vicap LLC, PSee Ventures LLC and Monoc Capital Ltd., which are owned and controlled by Chris Erickson, Purnesh Seegopaul and Andrew
Haughian, respectively.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Vicap LLC

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,349,384 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,349,384 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,349,384 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.4% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; OO

(1) Consists of 11,292,493 shares held directly by Pangaea Ventures Fund III, LP and 56,891 shares held directly by
Vicap LLC. Pangaea Ventures Fund III, LP is managed by its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by Vicap LLC, PSee Ventures LLC and Monoc Capital Ltd., which are owned and
controlled by Chris Erickson, Purnesh Seegopaul and Andrew Haughian, respectively.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; PSee Ventures LLC

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,292,493 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.4% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; OO

(1) Consists of shares held directly by Pangaea Ventures Fund III, LP. Pangaea Ventures Fund III, LP is managed by
its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by Vicap LLC, PSee Ventures LLC and Monoc Capital Ltd., which are owned and controlled by Chris Erickson, Purnesh Seegopaul and Andrew
Haughian, respectively.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Monoc Capital Ltd.

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,482,493 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,482,493 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,482,493 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.5% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; OO

(1) Consists of 11,292,493 shares held directly by Pangaea Ventures Fund III, LP and 190,000 shares held directly
by Monoc Capital Ltd. Pangaea Ventures Fund III, LP is managed by its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by VicapLLC, PSee Ventures LLC and Monoc Capital Ltd., which are owned and
controlled by Chris Erickson, Purnesh Seegopaul and Andrew Haughian, respectively.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Pangaea Partners LLC

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;149,586 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;149,586 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 149,586 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 0.1% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; OO

(1) Consists of 149,586 shares held directly by Pangaea Partners LLC. Chris Erickson and Andrew Haughian share
voting and dispositive control over the shares held by Pangaea Partners LLC.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Chris Erickson

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,498,970 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,498,970 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,498,970 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.5% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; IN

(1) Consists of 11,292,493 shares held directly by Pangaea Ventures Fund III, LP, 149,586 shares held directly by
Pangaea Partners LLC, and 56,891 shares held directly by Vicap LLC. Pangaea Ventures Fund III, LP is managed by its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by VicapLLC, PSee Ventures
LLC and Monoc Capital Ltd., which are owned and controlled by Chris Erickson, Purnesh Seegopaul and Andrew Haughian, respectively. Chris Erickson and Andrew Haughian share voting and dispositive control over the shares held by Pangaea Partners LLC.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Purnesh Seegopaul

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,292,493 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,292,493 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.4% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; IN

(1) Consists of shares held directly by Pangaea Ventures Fund III, LP. Pangaea Ventures Fund III, LP is managed by
its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by Vicap LLC, PSee Ventures LLC and Monoc Capital Ltd., which are owned and controlled by Chris Erickson, Purnesh Seegopaul and Andrew
Haughian, respectively.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

CUSIP No. 26916J106

1. &nbsp;&nbsp;&nbsp;&nbsp; Names of Reporting Persons. &nbsp;&nbsp;&nbsp;&nbsp; Andrew Haughian

2. &nbsp;&nbsp;&nbsp;&nbsp; Check the Appropriate Box
if a Member of a Group (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; (a) ☐ (b) ☐

3. &nbsp;&nbsp;&nbsp;&nbsp; SEC Use Only

4. &nbsp;&nbsp;&nbsp;&nbsp; Citizenship or Place of
Organization &nbsp;&nbsp;&nbsp;&nbsp; United States of
America

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Voting Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,632,079 shares (1) |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7. | &nbsp;&nbsp;&nbsp;&nbsp;Sole Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;0 shares |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially <br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8. | &nbsp;&nbsp;&nbsp;&nbsp;Shared Dispositive Power<br>&nbsp;&nbsp;&nbsp;&nbsp;11,632,079 shares (1) |

---

9. &nbsp;&nbsp;&nbsp;&nbsp; Aggregate Amount Beneficially Owned by Each Reporting Person &nbsp;&nbsp;&nbsp;&nbsp; 11,632,079 shares (1)

10. &nbsp;&nbsp;&nbsp;&nbsp; Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; ☐

11. &nbsp;&nbsp;&nbsp;&nbsp; Percent of Class
Represented by Amount in Row (9) &nbsp;&nbsp;&nbsp;&nbsp; 7.6% (2)

12. &nbsp;&nbsp;&nbsp;&nbsp; Type of Reporting Person
(See Instructions) &nbsp;&nbsp;&nbsp;&nbsp; PN

(1) Consists of 11,292,493 shares held directly by Pangaea Ventures Fund III, LP, 190,000 shares held directly by
Monoc Capital Ltd., and 149,586 shares held directly by Pangaea Partners LLC. Pangaea Ventures Fund III, LP is managed by its general partner, Pangaea Ventures III LLC ("Pangaea GP"). Pangaea GP is managed and controlled by Vicap LLC, PSee
Ventures LLC and Monoc Capital Ltd., which are owned and controlled by Chris Erickson, Purnesh Seegopaul and Andrew Haughian, respectively. Chris Erickson and Andrew Haughian share voting and dispositive control over the shares held by Pangaea
Partners LLC.

(2) Percentage ownership is based on 153,258,791 shares of the Issuer's outstanding common stock as of
October 31, 2022, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 2022.

------

---

| | |
|:---|:---|
| **Item 1(a)** | **Name of Issuer:**  |

---

ESS Tech, Inc.

---

| | |
|:---|:---|
| **Item 1(b)** | **Address of Issuer's Principal Executive Offices:**  |

---

26440 SW Parkway Ave., Bldg. 83

Wilsonville, OR 97070

---

| | |
|:---|:---|
| **Item 2 (a)** | **Name of Person Filing:**  |

---

Pangaea Ventures Fund III, LP

Pangaea Ventures III LLC

Vicap LLC

PSee Ventures LLC

Monoc Capital Ltd.

Pangaea Partners LLC

Chris Erickson

Purnesh Seegopaul

Andrew Haughian

---

| | |
|:---|:---|
| **Item 2 (b)** | **Address of Principal Business Office or, if none, Residence:**  |

---

5080 North 40th Street, Unit 105,

Phoenix, AZ 85018

---

| | |
|:---|:---|
| **Item 2 (c)** | **Citizenship:**  |

---

---

| | |
|:---|:---|
| Name | Citizenship or Place of Organization |
| Pangaea Ventures Fund III, LP | Delaware |
| Pangaea Ventures III LLC | Delaware |
| Vicap LLC | Delaware |
| PSee Ventures LLC | New Jersey |
| Monoc Capital Ltd. | British Columbia |
| Pangaea Partners LLC | Delaware |
| Chris Erickson | Canadian Citizen |
| Purnesh Seegopaul | United States Citizen |
| Andrew Haughian | Canadian Citizen |

---

---

| | |
|:---|:---|
| **Item 2 (d)** | **Title of Class of Securities:**  |

---

Common stock, par value $0.0001 per share

---

| | |
|:---|:---|
| **Item 2 (e)** | **CUSIP Number:**  |

---

26916J106

**Item 3.** **If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or 240.13d-2(c), check whether the person filing is a:** <br>

Not applicable.

------

**Item 4.** **Ownership.** <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned:

See Row 9 of cover pages.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of class:

See Row 11 of cover pages.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Number of shares as to which the person has:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Sole power to vote or to direct the vote:

See Row 5 of cover pages.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Shared power to vote or to direct the vote:

See Row 6 of cover pages.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Sole power to dispose or to direct the disposition of:

See Row 7 of cover pages.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Shared power to dispose or to direct the disposition of:

See Row 8 of cover pages.

**Item 5.** **Ownership of 5 Percent or Less of a Class.** <br>

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 5 Percent on Behalf of Another Person.** <br>

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.** <br>

Not applicable.

**Item 8.** **Identification and Classification of Members of the Group.** <br>

Not applicable.

------

**Item 9.** **Notice of Dissolution of Group.** <br>

Not applicable.

**Item 10.** **Certifications.** <br>

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under §240.14a-11.

------

**SIGNATURES** 

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: January 30, 2023

---

| |
|:---|
| PANGAEA VENTURES FUND III, LP |
| By: Pangaea Ventures III, LLC, its General Partner |
| /s/ Andrew Haughian |
| Name: Andrew Haughian |
| Title: Director |
| PANGAEA VENTURES III, LLC |
| /s/ Andrew Haughian |
| Name: Andrew Haughian |
| Title: Director |
| PANGAEA PARTNERS LLC |
| /s/ Andrew Haughian |
| Name: Andrew Haughian |
| Title: Director |
| MONOC CAPITAL LTD. |
| /s/ Andrew Haughian |
| Name: Andrew Haughian |
| Title: Director |
| VICAP LLC |
| /s/ Chris Erickson |
| Name: Chris Erickson |
| Title: Director |

---

------

---

| |
|:---|
| PSEE VENTURES LLC |
| /s/ Purnesh Seegopaul |
| Name: Purnesh Seegopaul |
| Title: President |
| /s/ Andrew Haughian |
| Andrew Haughian |
| /s/ Chris Erickson |
| Chris Erickson |
| /s/ Purnesh Seegopaul |
| Purnesh Seegopaul |

---

------

**EXHIBIT INDEX** 

---

| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 1 | Joint Filing Agreement, dated October 20, 2021 (incorporated by reference to Exhibit 1 of the Reporting Persons' Schedule 13G filed with the Securities and Exchange Commission on October 21, 2021). |

---