(Adds details on Daimler Truck deal)

May 6 (Reuters) - Members of the United Auto Workers

ratified a new labor contract with Daimler Truck on

Saturday, following a series of wins against the Detroit Three

automakers last fall.

The UAW also notched up a historic victory when workers at

the Volkswagen Chattanooga, Tennessee plant voted to join the

union, as President Shawn Fain tries to organize non-union U.S.

auto factories, most of them built by Asian and European

automakers in southern U.S. states.

Meanwhile, focus is on voting between May 13 and May 17 at a

Mercedes assembly plant in Alabama on whether to join

the UAW.

Here is a timeline of UAW's contract talks with the Detroit

Three automakers and its efforts to organize non-unionized

factories:

Date Developments

2023

March 25 Shawn Fain wins the race for UAW president and

vows to take a tough stance against the Big

Three automakers.

April 21 Fain says there is "no excuse" for Detroit's

automakers to set up electric vehicle operations

and ventures that are not unionized.

July 10 The UAW says it will open contract talks with

Detroit's Big Three automakers - Chrysler-parent

Stellantis , Ford Motor and

General Motors - on agreements covering

about 150,000 U.S. workers.

Aug. 01 Fain says the union is seeking ambitious benefit

increases in contract talks with the Detroit

Three automakers.

Aug. 25 UAW members vote overwhelmingly in favor of

authorizing a strike at the Detroit Three

automakers if an agreement is not reached before

the then-current four-year contract expires on

Sept. 14.

Sep. 13 The UAW rejects counteroffers from the

automakers and outlines plans for strikes

targeting individual U.S. auto plants in what

would be its first-ever simultaneous strike

against the Detroit Three.

Sept. 15 The union launches simultaneous strikes aimed at

halting production at three factories owned by

GM, Ford and Stellantis.

Oct. 30 The union reaches a deal with GM, after reaching

agreements with Stellantis and Ford, ending the

strike against Detroit automakers.

Nov. 1 Toyota Motor hikes wages of nonunion

U.S. factory workers

Nov. 2 The UAW signals the next step in the union's

campaign: launching organizing drives at Toyota

, Tesla and other nonunion U.S.

auto factories.

Nov. 8 Fain says the union will "pull out all stops" in

working to organize non-union U.S. auto plants.

Nov. 9 President Joe Biden backs UAW's efforts to

unionize Tesla and Toyota workers.

Nov. 10 Honda Motor says it will give

production workers at its U.S. facilities an 11%

pay hike starting in January.

Nov. 13 Hyundai Motor says it will hike

wages for nonunion production workers at its

Alabama factory by 25% by 2028.

Nov. 16 Japanese automaker Subaru says it will

raise the wages of its U.S. workers at Subaru's

assembly plant in Lafayette, Indiana.

Nov. 20 The UAW says 64% of workers at the Detroit Three

automakers voted to ratify new record contracts

after a six-week targeted strike, as the union

turns its attention to organizing foreign-owned

and Tesla auto plants.

Nov. 20 Nissan Motor says it will hike top

wages for workers at U.S. manufacturing plants

by 10% in January.

Nov. 22 Volkswagen says it will hike

salaries for production workers at its

Tennessee-based Chattanooga assembly plant by

11%.

Nov. 29 The UAW says it was launching a

first-of-its-kind push to publicly organize the

entire nonunion auto sector in the U.S. UAW says

workers at 13 nonunion automakers were

announcing simultaneous campaigns across the

country to join the union.

Dec. 07 The UAW says more than 1,000 factory workers at

Volkswagen's Chattanooga, Tennessee, assembly

plant, which employs about 3,800 workers, have

signed union authorization cards.

Dec. 11 The UAW says it filed unfair labor practice

charges against Honda Motor, Hyundai Motor

and Volkswagen, citing aggressive

anti-union campaigns to deter workers from

organizing.

2024

Jan. 04 A group of 33 U.S. senators urges Tesla and 12

other automakers to remain neutral in ongoing

efforts by the UAW to organize U.S. auto plants.

Jan. 11 Tesla tells production workers in the United

States that they will get a pay hike, Bloomberg

News reported.

Feb. 01 The UAW says more than 30% of workers at Hyundai

Motor's Alabama plant have signed cards seeking

to join the union.

Feb. 06 The UAW says a majority of workers at

Volkswagen's Chattanooga, Tennessee, assembly

plant have signed cards to join the union

Feb. 21 The union says it will commit $40 million to

organizing non-union automobile and EV battery

workers in the United States over the next two

years.

Feb. 27 The union says a majority of hourly workers at a

Mercedes Benz Alabama factory have

signed cards to join the union.

March 06 The union said more than 30% of workers at a

Toyota Motor Missouri factory are seeking to

join the union.

March 18 The union says a supermajority of eligible

workers at Volkswagen's Chattanooga, Tennessee

assembly plant have signed union cards.

March 25 Workers at Volkswagen's Chattanooga, Tennessee,

assembly plant will vote in April on whether to

join the United Auto Workers union.

April 05 Workers at a Mercedes Benz factory in Vance,

Alabama, file a petition with U.S. regulators to

hold an election to join the United Auto

Workers, the union said.

April 17 Voting at Volkswagen Tennessee plant to begin.

April 18 Workers at a Mercedes Benz factory in Vance,

Alabama, will vote between May 13 and May 17 to

decide if they want to join the union, the

National Labor Relations Board said.

April 19 Workers at Volkswagen's Tennessee plant have

voted to join the UAW union. A majority of

eligible workers cast ballots in favor of the

union, with the final tally at 2,628 to 985, or

73% for joining the UAW.

May 04 UAW members ratified a new labor contract with

Daimler Truck that includes at least

a 25% general wage increase over the four-year

deal.

(Compiled by Kannaki Deka in Bengaluru; Editing by Anil

D'Silva, Arun Koyyur and Sriraj Kalluvila)