LAC · Lithium Americas Corp.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of RSUs on June 26, 2025, which vest 1/3 annually beginning on the one-year anniversary of the grant date.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each DSU represents the right to receive one common share of the Issuer. The underlying common shares will not be issued to the Reporting Person, and the Reporting Person shall not have any voting or dispositive rights with respect to the underlying common shares, until termination of the Reporting Person's employment or services as a director of the Issuer. Grants to U.S. eligible participants will be settled with no further action by the Reporting Person on the date that is 6 months following the Reporting Person's termination date. Grants to non-U.S. eligible participants will be settled with no further action by the Reporting Person on the 20th business day following the Reporting Person's termination date.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Converted from Canadian price of C$5.71 using an exchange rate of C$1.3825 = US$1.00.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of 53,136 RSUs on April 10, 2025, which vest one-third annually beginning in 2026.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of 117,550 RSUs on April 10, 2025, which vest 1/3 annually on the anniversary of the grant date, beginning in 2026.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of RSUs on April 10, 2025, which vest 1/3 annually on the anniversary of the grant date, beginning in 2026.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of 293,692 RSUs on April 10, 2025 which vest 1/3 annually on the anniversary date of the grant, beginning in 2026.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of 63,653 RSUs on April 10, 2025, which vest one-third annually beginning in 2026.

Converted from Canadian price of C$5.71 using an exchange rate of C$1.3825 = US$1.00.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of 47,020 RSUs on April 10, 2025, which vests 1/3 annually beginning in 2026.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of 102,717 RSUs on April 10, 2025, which vest 1/3 annually on the anniversary date of the grant, beginning in 2026.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of RSUs on February 9, 2023, which vest one-third annually beginning in 2024.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of RSUs on February 9, 2023, which vest 1/3 annually on the anniversary of the grant date, beginning in 2024.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

Represents grant of performance share units on February 9, 2023, for which the board determined the performance criteria to be met on [February 9, 2026].