Development Process Generally. ​ and ​ intend that the ​’s Work is to be treated as a “speculative” development by ​ and that ​’s approval right over the Base Building Schematics is generally limited to confirming conformance with the work described in [Schedule 1]. ​ and ​ intend that the process of the development of the Premises and construction of the Improvements will proceed in a collaborative, “open book” manner with the goal that the Premises will meet ​’s requirements and will be undertaken in an efficient and cost-effective manner. ​ shall use good faith efforts to carry out its obligations under this Work Letter with the standard of care to which landlords constructing projects similar to the Premises are held. ​ shall respond to requests from ​ timely and in good faith and not use its approval rights under this Work Letter for the purpose of delaying or frustrating the Premises being Ready for Occupancy. ​ shall have full and current access to all material information related to the major elements of the development of the Premises and the right to participate in major decisions, all as more particularly described in, and subject to the terms and conditions of, this Work Letter. ​ shall have the right at any time, either in the regularly scheduled Project Meetings or otherwise, to raise with ​ in good faith any questions, concerns, suggestions or objections related to the development process, and ​ shall consider all such questions, concerns, suggestions or objections in good faith, such that ​ and ​ shall work together in a reasonable,

Product Development Program. After the Effective Date, Zai Lab will, either by itself or through its Affiliates, licensees and/or sublicensees, be solely responsible for designing and performing all aspects of the Development Program in accordance with the Development Plan, provided that Zai Lab may undertake changes to its development plans from time to time as long as it continues to satisfy its diligence obligations under this Agreement. Zai Lab will have sole responsibility and control for the managing and the financing of the Development Plan and all Development Costs. The primary focus of the Development Program will be to Develop and obtain Regulatory Approvals for one or m`ore Products.

Initial Development Activities. ​ shall perform the Initial Development Activities, and shall do so in accordance with the Initial Development Plan and Budget by allocating sufficient time, effort, equipment, and skilled personnel to complete such Initial Development Activities. ​ shall provide [[Organization A:Organization]] with monthly high-level status reports noting project critical path activities, risks and mitigation plans. If ​ is in material breach of its obligation to perform any Initial Development Activities and fails to remedy such breach within […​…] after written notice thereof from [[Organization A:Organization]], [[Organization A:Organization]] shall have the right, at [[Organization A:Organization]]’s sole election, and without limitation to any other right or remedy available to [[Organization A:Organization]], to assume and complete some or all of such Initial Development Activities. The Parties acknowledge and agree that in the event [[Organization A:Organization]] assumes some or all of such Initial CONFIDENTIAL TREATMENT REQUESTED. INFORMATION FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED IS OMITTED AND MARKED WITH “[...​...]”. AN UNREDACTED VERSION OF THE DOCUMENT HAS ALSO BEEN FURNISHED SEPARATELY TO THE SECURITIES AND EXCHANGE COMMISSION AS REQUIRED BY RULE 406 UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

BBTR System Development. Blackbox has customized and branded the BBTR System for providing Services to Customers utilizing BBTR Exchange Data, as mutually agreed by the Parties for marketing and sublicensing by BBTR. Except as mutually agreed by the Parties, BBTR shall be responsible for all costs associated with any further customization and branding of the BBTR System. Unless otherwise agreed by the Parties, BBTR shall pay within 30 calendar days of receipt of the invoice all additional customization costs which shall be negotiated in advance of any such customization services and invoiced by Blackbox via wire transfer per the instructions attached hereto as Exhibit A.

Development and Regulatory Diligence. Licensee will use and will cause its Affiliates and Sublicensees to use Commercially Reasonable Efforts to # Develop Licensed Products (consistent with Section 3.3) for use in the Territory, # to the extent additional indications or uses, or additional Licensed Products, are Developed, to seek Regulatory Approvals therefore, and # to maintain in good standing and effect all Regulatory Approvals in the Territory for Licensed Products, including both those Regulatory Approvals transferred to Licensee pursuant to this Agreement and new Regulatory Approvals obtained by Licensee during the Term.

Development, Manufacturing and Commercialization. Regeneron shall have the right to grant one or more sublicenses under the licenses granted to Regeneron under Section 4.1, in full or in part, by means of written agreement to Affiliates or Third Parties (with the right to sublicense through multiple tiers), without the prior written consent of CytomX, for the performance of Regeneron’s Development, Manufacturing and Commercialization activities related to Licensed Products or for the performance of any other activities related to the Exploitation of a Licensed Product. As a condition precedent to and requirement of any such sublicense: # Regeneron shall furnish a redacted copy of such sublicense agreement to CytomX; # any such permitted sublicense shall be consistent with and subject to the terms and conditions of this Agreement (including for the avoidance of doubt, that if sales by such Sublicensee are included in Net Sales hereunder, such Sublicensee shall permit audit rights with respect to its reporting of Net Sales that are consistent with those given by Regeneron hereunder with respect to its sales included in Net Sales); # Regeneron will continue to be responsible for full performance of its obligations under this Agreement and will be responsible for all actions of such Sublicensee as if such Sublicensee were Regeneron hereunder; and # Regeneron’s grant of any sublicense will not relieve Regeneron or its Affiliates from any of its obligations under this Agreement.

Selection of Development Candidates. For each Collaboration Antigen, during the Research Term for the applicable Research Candidates and following review of the data from activities under the applicable Research Plan, the JSC will select a Research Candidate that specifically targets such Collaboration Antigen to be a Development Candidate for Development pursuant to an Early Clinical Development Program in accordance with the terms and conditions of this Agreement. For each Collaboration Antigen, the date upon which the JSC selects a Development Candidate will be the “Development Candidate Selection Date.” If, following the review of data from activities under the ​ INDICATES MATERIAL THAT HAS BEEN OMITTED AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED

The terms under which SGI will supply clinical supplies of SGI Antibodies to Unum for use as part of the Development Candidates in the Territory under the Late Clinical Development Plan will be set forth in a supply agreement to be entered into between the Parties no later than ​ days prior to the date of initiation of a Clinical Trial of the first Development Candidate in the Territory (the “SGI Antibodies Clinical Supply Agreement”). Such SGI Antibodies Clinical Supply Agreement will contain terms and conditions that are consistent with this Agreement.

Development and Commercialization Activities. Arcus shall use Commercially Reasonable Efforts to Develop and Commercialize Licensed Products. Arcus shall use Commercially Reasonable Efforts to manufacture or otherwise obtain supply of its requirements of packaged and labeled Licensed Products in connection with its Development and Commercialization obligations hereunder, in accordance with all Applicable Laws, GMP (as applicable) and this Agreement. For so long as Arcus is conducting Development activities under this Agreement, Arcus shall provide to WuXi, no later than on June 30 and December 31 of each calendar year, with written summaries of the Development activities it performed, or caused to be performed, in respect of Licensed Products since the preceding report (or, with respect to the first such report, since the Effective Date), and the future Development activities it ​ CERTAIN INFORMATION IN THIS DOCUMENT HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE OMITTED PORTIONS.

Development and Commercialization Activities. Arcus shall use Commercially Reasonable Efforts to Develop and Commercialize Patented Products in the Field. Notwithstanding the foregoing, Arcus is obligated to file an IND in the United States on a Patented Product no later than ​ months from the Effective Date; provided that Stage 2 Technology Transfer, as defined in Section 3.3.1 below, is completed no later than ​ days following the Effective Date. The deadline for Arcus to file an IND in the United States on a Patented Product shall be extended by one (1) day for each day that Abmuno is late in completing Stage 2 Technology Transfer. Any delay or postponement in the filing of an IND in the United States on a Patented Product beyond the deadline for such filing will be subject to approval by Abmuno, which approval shall not be unreasonably withheld, conditioned or delayed.