PHT INTERNATIONAL

WHO WE ARE

Pharmaceutical

Agrochemical

Specialty Chemicals

The Foundation Has Always Been Family

Originally set up to serve the textile market in the southeast region of the United States, PHT International, Inc. emerged as a pioneer in delivering solutions from China by Founder and Chairwoman Lihong Yu.

 

While the company was established in 1993, its inception goes back further.  Lihong was born in Ningbo, China and raised through the Chinese Cultural Revolution in the late 1960’s. As with many who were skilled and educated during this period, her parents were exiled to the countryside during the decade-long revolution; she was just six years old. It was in the food markets of Ningbo, in the care of her grandparents, that Lihong’s tenacity and talent for negotiations emerged.

 

Yu took on the responsibility of managing the household budget to ensure the entire family could be fed. She sought, purchased, and negotiated her way into stretching their limited income. In the end, her drive and pragmatism became lifelong pillars that eventually gave birth to PHT.

To us YOU matter!

As one of the best full-service CRDMO and chemical supply companies in the industry, PHT designs agile and flexible custom solutions you can count on.  Our incredible success is due to the values we hold true.

Take Advantage of PHT’s Unsurpassed Relationships

In the late 1990’s, Lihong spotted the trend of large chemical companies going directly to China and many set up their own sourcing offices in hubs like Shanghai, Beijing, and Hong Kong that remain to this day. 

As a westernized company with global reach, Lihong focused PHT in agricultural and pharmaceutical chemicals. This quickly turned into plant partnership/ownership options with sourcing, researching, developing, and manufacturing capabilities. 

With passion, innovation, and an unrelenting belief that the right relationships are the key to success, Lihong’s vision for PHT as an integrated CRDMO partner and chemical supplier in the life sciences area continues to strengthen.

History & milestones

1993

Sourcing

Basic
Intermediate

Sourced from China and supplied to Europe and the Americas

1998-2000

Partners & JVs

Custom Intermediate & Regulated Markets

In house development with scale up at partner sites. Supplied API’s and AI’s from partners and JV facilities

2014

PHT Manufacturing

API’s & Regulated Intermediates

Purchased Sancus Arc Biochem, a FDA inspected, cGMP facility

2016

Green Chemistry

Key Technology

Exclusive collarborations with UCSB, sponsoring a post-doctorate in
Professor Bruce Lipshutz Green Chemistry Lab

2017

Equity Investment

Agricultural
Intermediates & AI’s

Invested in Insight FineChem to enhance our fine chemical manufacturing capacity and CMO business for our crop protection customers

2021

Acquisition

Contract Research Organization (CRO)

Purchased Basilea Pharmaceutica China to boost our CRO services enhancing out CDMO service for our innovative cuctomers

All 7 Locations Are Here to Serve You!

All 7 Locations Are Here to Serve You!

Meet The Team

Lihong Yu

CEO

Tina Diekmann

President

Mike Rigsbee

CFO

Susan Huang

GM of PHT China

Irvin Zhou

GM of PHT Tech

Uwe Steffan

GM of PHT Pharma

Amy Cooper

Global, Head of HR

Dana Vestal

Global, Head of IT, Operations, Project Management & Branding

Meet Our Founder, Lihong Yu

Here’s What People Are Saying About Working With PHT

UPCOMING EVENTS 2025

SOCMA Show

February 19th – 21st

Nashville, TN, USA

DCAT

March 16th – 20th

New York, NY, USA

CPHI Japan

April 9th – 11th

Tokyo, Japan

CPHI North America

May 20th – 22nd

Philadelphia, PA, USA

Chemspec Europe

June 4th – 5th

Koelnmesse, Germany

CPHI Shanghai

June 24th – 26th

Shanghai, China

Specialty & Agro Chemicals America

July 29th – 31st

Savannah, GA, USA

CPHI Frankfurt

October 28th – 30th

Frankfurt, Germany

News

Agile & Flexible Custom Solutions 
From a Reliable Partner You Can Trust

Agile & Flexible Custom Solutions  From a Reliable Partner You Can
Trust

Translate »