5:24-cv-05684
N.D. Cal.Jun 13, 2025Background
- Plaintiffs allege that TSMC engaged in a pattern and practice of employment discrimination and hostile work environment against individuals who are not of East Asian race, Taiwanese or Chinese national origin, or citizens of Taiwan or China.
- The case proceeded as a proposed class action, with both class claims (under 42 U.S.C. § 1981 and Title VII) and individual retaliation claims asserted by various plaintiffs.
- Plaintiffs sought leave to file a Second Amended Complaint (SAC), adding 15 new named plaintiffs, additional class claims, and new individual retaliation claims for five new individuals.
- Defendants did not oppose amendments relating to existing plaintiffs, but objected to adding new plaintiffs and their individual non-class claims.
- The dispute centered on whether Rules 15, 20, and 23 of the Federal Rules of Civil Procedure permitted the addition of new plaintiffs and claims given the facts and procedural posture.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Add 15 new plaintiffs to class claims | The amendment is routine, alleges a company-wide pattern/practice; Rule 15 and 20 are met. | Claims arise from diverse circumstances, with no common thread; joinder not justified, risk of delay and prejudice. | Allowed – new plaintiffs can assert class claims; alleged pattern/practice sufficient for class claims; objections go to class certification. |
| Add individual, non-class retaliation claims for 5 new plaintiffs | Claims arise from the same pattern/practice of discrimination; permissive joinder appropriate. | Individual claims highly fact-specific, do not arise from the same transaction/occurrence, and cause prejudice/confusion. | Denied – individual retaliation claims not sufficiently related for joinder; each is highly individualized. |
| Timeliness of amendment | Plaintiffs learned of new plaintiffs only after original filing; acted without undue delay. | Proposal causes delay; case already pending for months. | Allowed – no undue delay or prejudice; amendments timely given new information. |
| Number of named plaintiffs in class action | Number of plaintiffs justified to efficiently advance claims, facilitate discovery, and protect witnesses. | Too many named plaintiffs burdens litigation, not necessary for class action purposes, and defeats Rule 23’s structure. | Allowed – No bright-line rule for too many named class plaintiffs; manageable within Court’s discretion for later proceedings. |
Key Cases Cited
- Foman v. Davis, 371 U.S. 178 (listing factors for granting leave to amend pleadings under Rule 15)
- Desert Empire Bank v. Ins. Co. of N. Am., 623 F.2d 1371 (permissive joinder under Rule 20 requires transaction/occurrence and common questions)
- Waits v. Weller, 653 F.2d 1288 (discretion of trial court in ruling on leave to amend)
- Koby v. ARS Nat’l Servs., Inc., 846 F.3d 1071 (purpose of class actions—named plaintiffs represent entire class)
- Eminence Capital, LLC v. Aspeon, Inc., 316 F.3d 1048 (prejudice to opposing party is most important factor for amendment)